Etampes, Notre-Dame-du-Fort

ETMPES-N

Building Data for Etampes, Notre-Dame-du-Fort

  •  
  • Type: Collegiate
  • Affiliation: Augustinian
  •  
  • Region: Ile-de-France
  • Department: Essonne
  • Coords: 48.435, 2.1642
  •  
  • Surveyed: 1969, 1979, 1980-83, 2003, 2005, 2009, 2015, 2017

Map

Virtual Tour

Studies These draft studies have been written as if all carvings were by an individual whereas they can equally be analysed as template modes employed by a number of carvers. 
    	    The more personal approach was necessitated by the complexity of the data. The drafts will be reconsidered after I have added the rib vault material to the database.
X

These draft studies have been written as if all carvings were by an individual whereas they can equally be analysed as template modes employed by a number of carvers. The more personal approach was necessitated by the complexity of the data. The drafts will be reconsidered after I have added the rib vault material to the database.

Timeline and building units for Etampes, Notre-Dame-du-Fort A 'building unit' is an arbitrary unit of work based on bulk billing techniques used by quantity surveyors. 
    	    The unit is small enough to provide realistic figures in the small churches without becoming too huge in the large. 
    	    Six units would pay for one small vaulted bay in an aisle about 3 metres square, or a small first-floor gallery. 
    	    Such a bay would consist of an external wall with a small window, half of two columns about 3 meters tall, the floor and footings under them and the vault and roof overhead.
X

A 'building unit' is an arbitrary unit of work based on bulk billing techniques used by quantity surveyors. The unit is small enough to provide realistic figures in the small churches without becoming too huge in the large. Six units would pay for one small vaulted bay in an aisle about 3 metres square, or a small first-floor gallery. Such a bay would consist of an external wall with a small window, half of two columns about 3 meters tall, the floor and footings under them and the vault and roof overhead.

info

gray gray 32
1090
gray 62
1110
182
1120
389
1130
279
1140
290
1150
gray 77
1190
40
1200
gray 45
1230
gray
1050 1090s 1110s 1120s 1130s 1140s 1150s 1190s 1200s 1230s 1250

Phases for Etampes, Notre-Dame-du-Fort The building sequence is based on my on-site analysis of the construction history,  
    	    using the techniques developed on the cathedral of Chartres called toichology, and described in a number of publications.
    	    The analysis of some of the smaller churches are more approximate than I would like, and need further analysis. 
    	    <p>I have used 'phase' rather than 'campaign' to to identify a contiguous zone with similar elements. 
    	    A campaign would be defined by recognisable breaks and construction joints in the fabric: there may be a number of phases within a campaign.
    	    One benefit is that separate programs by subcontractors, such as carvers, may be isolated, which is particularly useful in complex sections, such as portals.
    	    <p>Every phase has been assigned to a decade, so there may be more than one phase in a decade. 
    	    <p>While this is certainly imperfect, it will allow us to explore all the data, including costs, across time. 
    	    This is an on-going process, so as the data continues to be analyzed, the chronology and costing analysis will be further refined, and the synopsis updated. 
    	    <p>Clicking on any of the decade graphics will display all buildings that had work being done during that decade.
X

The building sequence is based on my on-site analysis of the construction history, using the techniques developed on the cathedral of Chartres called toichology, and described in a number of publications. The analysis of some of the smaller churches are more approximate than I would like, and need further analysis.

I have used 'phase' rather than 'campaign' to to identify a contiguous zone with similar elements. A campaign would be defined by recognisable breaks and construction joints in the fabric: there may be a number of phases within a campaign. One benefit is that separate programs by subcontractors, such as carvers, may be isolated, which is particularly useful in complex sections, such as portals.

Every phase has been assigned to a decade, so there may be more than one phase in a decade.

While this is certainly imperfect, it will allow us to explore all the data, including costs, across time. This is an on-going process, so as the data continues to be analyzed, the chronology and costing analysis will be further refined, and the synopsis updated.

Clicking on any of the decade graphics will display all buildings that had work being done during that decade.

Short version of history

Earlier

Phase 1 - Earlier [1040] - crypt


The crypt predates the church and may be Carolingian. There would have been a small church above possibly no wider than the space between the piers of the present choir and no longer than the present apse to crossing; entry into the crypt may have been from the centre of the upper church or laterally from outside.
Earlier

Phase 2 - Earlier - tower base


In the west there are remains of a two-level structure; all that is visible is the interior of the rubble vise and a short section of walling on the south-west corner as the rest has been encased with ashlar in later campaigns; the first 29 treads of the vise have a larger newel than the next 31, indicating that the building was constructed in two campaigns.
Earlier

Phase 3 - Earlier - ossuary


There is a deep basement under the sacristy that was at one time used as an ossuary; it has a central pillar and doubled corbels and one carved corbel; the depth raises serious questions about the original ground level and disposal of rainwater.
1090

Phase 4 - 1090 [1090] - Above the two-storey tower - 32 Units


Above the two-storey tower base stones of the next 25 treads are extended to form the newel, and the inner diameter of the staircase gradually diminishes; the external wall is visible on the outside and at the top forms a square base to support the second storey of the tower with a crenelated coping; except for two, the capitals are plain.
1110

Phase 5 - 1110 [1115] - nave (a) - 24 Units


A nave of three bays (not the two we have today) and four piers was built between the tower and the earlier church with massive drum piers and capitals to the 14th course supporting the arcade arches and starters for arches across the future aisles [black on plan in phase 7]; logic suggests the three bays with the easternmost being later modified to accommodate the transepts, because part of the eastern crossing drums are still visible inside later adossed pilasters; the drums have massive three-course bases with a splay and groove in the plinths, and stood alone without the adjacent aisles; the capitals at this level have a small recess at the upper corners to reflect arches in three directions; those in the eastern crossing and in WN1(a) [the north nave crossing pier] are similar and may have been carved before the others; in this scenario the campaign rose no further than the nave arcade arches, though the capitals to the eastern piers may have been set higher than the rest.
1110

Phase 6 - 1110 [1116] - north (a) - 12 Units


The wall for the north nave aisle was erected on massive plinths much wider than the torus, with a simple splay and groove as in the arcade; in the west the wall was extended some metres to the top of a plinth against the west wall, and in the east I presume that the wall would have been extended towards the choir from the part of a drum visible in the eastern crossing pier; also, the remnants of this extension may still be visible in a narrow strip of ashlar between the Wn1e shafts and the wall of the transept; the eastern arcade arch (now demolished) would not have been affected by the pilaster added onto the north face of WN1 pier as it lay to one side; at the western end there are still traces of the doubleau from this phase.
1110

Phase 7 - 1110 [1117] - south (a) - 12 Units


South nave aisle walls with capitals over different plinths; the aisle is narrower than the north and it too could have been extended eastwards into the third bay; the layout was designed for groin vaults, though above the capitals corbels were added that could have supported ribs, and if so the idea was soon abandoned and they continued with groin vaults.
1110

Phase 8 - 1110 [1118] - nave (c) - 14 Units


In this scenario the nave clerestory capitals were placed at the level of the present string course that runs under the later clerestory windows, being about the 38th course; they remained there until they were raised 11 courses to their present height around phase 31; if not placed the capitals would have remained in storage for 70 years and would have been unlikely to survive. A temporary roof over the nave and both aisles would have been built at this level over three bays from the tower to the eastern crossing piers, in preparation for moving services from the choir to the nave so the 3 bays of the choir could be rebuilt, but the roof ended up being an encumbrance for the next 70 years delaying the completion of the transepts. The style of the two capitals from this period that peek out from the eastern drum at the clerestory level (c+) is similar to the capitals in nave aisle W1(a); being carved about the same time we have two choices, either they were initially placed much lower down or the 35+ courses between them would have been erected before the piers in the nave; many years before because the average rate of construction at that time was between 5 and 12 courses per year. In the west the walls and capitals of the organ loft from the 1190s in phase 37 are loosely bonded with the two corner drums above the level of the string course, showing that the upper parts of the drums were probably built at the same time, and with at least the lower courses of the jambs of the huge nave clerestory windows. In the east the evidence lies in the outer skin of rubble walling in the two adjacent transept walls in phases 32 and 36, both in the north and south; the junctions between the rubble and the transept buttresses is clean and unbonded and in this scenario the outer bays of the transept clerestory would have been completed, but the three bays in the centre including the western crossing would have been held back by the temporary roof over the nave; the rubble walls therefore filled in the section that had been delayed.
1120

Phase 9 - 1120 [1121] - north entry - 15 Units


Externally, the middle section of the north wall of the transept has small buttresses that do not lie on the axes from the future transept; between them there used to be two openings, perhaps for access to a funerary chapel over the basement &quot;ossuary&quot; (the cemetery used to be to the north); the arched outline of the eastern opening is still visible from the south (now filled in with a later frame and a small door) and the south face of the other has been completely remodelled, though the original flattened arch is still visible from the north; the dimensions suggest two equal openings with windows or sculpture over doorways; part of the frame on the right side is now hidden behind the later NE3 shafts; the original height of this room may be indicated by the upper arches on the north side; the rib vaults were inserted later (Phase 40).
1120

Phase 10 - 1120 [1122] - choir (b) - 36 Units


Choir piers placed outside the walls of the still-existing choir and pilasters against the earlier drums in two or three campaigns [yellow]; the over-wide plinths under some piers are like those on the north side of the crossing suggesting part of the choir may have been erected with the north aisle (or by the same master on a later visit); they have an additional shaft that may have been for a wider arcade arches or for ribs; if there had been a shaft on the future flanking aisle side of any of these piers they are now buried inside the later pilasters; the pilasters against the southern crossing pier is later than the one in the north, their bases being those of the group erected in phase 20; the square-ended eastern bay may have been begun at the same time though the bases are hidden under the raised floor; the walls in the first campaign were raised only 3 or 4 courses above the bases, built of rubble between ashlar quoins inside and out; there is no evidence at this level for a transept nor for lateral chapels, and so one has the impression that the church was intended to be rectangular; there are remnants of openings or recesses in the sidewalls of the apse on both sides, and though the plasterwork makes it is very uncertain what they were for, the remaining stones do suggest the sides of openings or the start of arches.
1120

Phase 11 - 1120 [1124] - choir (a) - 15 Units


The two capitals on the sides of the eastern crossing piers on the 24th course (a-) may have been for an entry arch into the apse, a screen or support for a cross, or they could be the missing capitals in the (c+) level that were not raised with the rest of the western choir, but replaced by one of the Saint-Martin carvers. A question about the eastern pilaster on the EN1 pier is why was it needed if the arcade arch was already there? Maybe this has something to do with what was built in the north bay, see phase 19.
1120

Phase 12 - 1120 [1125] - choir (c) - 60 Units


All the choir clerestory capitals may have been intended to be level with the lower chapel vaults (c); this would have placed the clerestory some 11 courses lower than today, level with the lower vaults in the eastern chapels; this matched the level of the sills in the clerestory windows of the nave as discussed in Phase 8, and lines up with the string on the eastern wall at the 33rd course; as long as the vault was designed for a level crown there would have been ample room for the clerestory windows; the reasons are that the upper level capitals look misplaced, both in height and angulation and the imposts are confused; the upper capitals could not be placed until the last pilasters had been fully erected, and considering the 44 courses and the extent of the scaffolding, and that the arches between the transepts and the chapels at the lower (c) level had to be erected first, there could have been some years between them.
1120

Phase 13 - 1120 [1126] - choir (c+) - 56 Units


The capitals in the choir clerestory upper level (c+) at the 44th course are in the same mode as those in the (c) level, but some are misplaced, too small or too short for their location and the imposts confused; in the eastern bay the internal coursing of the side walls is continuous into the window frames, as it is outside into the uppermost courses of the four chapels, showing that the work above the string course was built at the same time, see Phase 32; the design of the upper eastern wall of the apse and the upper lateral windows are unlike the lower, suggesting a significant change above the string course, and in addition, the style of the capitals in the upper windows of the eastern choir, both inside and out, is similar to those in the uppermost part of the adjacent treasury; in this scenario the capitals were all placed at the (c) level until Phase 32 when the adjacent choir was raised sufficiently for them to be moved up, also little more could be done in the choir until the encasing shafts had been added after phase 20, these shafts forming the critical path for this work; the rough quality of the work may have had something to do with the restrictions in funding during the Crusade.
1130

Phase 14 - 1130 [1130] - n transept (b) - 50 Units


On the west face of the north transept three large buttresses were built some 4 metres up to the window string and with a circular staircase in the corner; though the doorway to west with its decorated shafts has different coursing in the lower masonry the jointing and the continuous coursing above the imposts suggests that the wall and door were built together; the size of the buttresses suggests the wall was for a tall transept, marking when the decision may have been taken to raise the height of the whole building; was the door in some way associated with whatever was built in the north transept bay in phase 19 [marked in yellow on plan]?
1130

Phase 15 - 1130 [1131] - n shafts - 30 Units


At the same time the enlarged plan meant that shafts had to be added on the north between the two openings from Phase 9, partly covering them; also at some moment the wall of the eastern nave aisle would have to be removed to make way for the corner shaft; the shaft arrangement in the piers suggests they intended rib vaults in the transept and groin around the chapels.
1130

Phase 16 - 1130 [1138] - n chapels - 40 Units


The bases and coursing show that the northern two chapels and north wall with its door and the two intermediate piers were built together to the string course at the 19th course over two, maybe three, campaigns; the shaft arrangement suggests they intended groin vaults [see iplan of EN2].
1130

Phase 17 - 1130 [1138] - s portal - 30 Units


Carving and erection of the south portal; note Palmier capital on the left embrasure; with enough imagiers the portal could have been carved in a few months, but it would have needed more time to erect all 34 courses up to the lean-to roof at the (c) level; the 2.6 metre thick wall that now covers part of the portal was one of the last parts of the choir to be built; the upper angel on the right sits within an arched recess the back of which is bonded into the ashlar behind the angel, and was the side of the nave buttress on the east of the portal, now covered by the thickened wall from Phase 34.
1130

Phase 18 - 1130 [1133] - n windows - 55 Units


Northern window sills over string at the 20th course form a continuous group without interruption; the string does not meet the pilaster shafts where the latter have been added, but there are gaps suggesting the shafts were anticipated but not erected; one window is exceptionally wide at 2.75 m; the height of the windows in the transept definitively shows that they had already decided to raise the height of the central bays; the lower courses of the strut over the entry into the north nave aisle seems contemporary.
1130

Phase 19 - 1130 [1133] - chamber - 12 Units


In the stonework above the nave aisle vault in the NW1 bay there are four anomalies: a) in the southwest corner the gap in the shafts at about the 23rd course about level with the apex of the nave arcade arch, b) a similar gap at the same height in the south east corner, neither of which are large and suggest the presence of an earlier structure (timber?) that was resting on the courses below and delayed work on the courses above, c) in the northwest (Nw2) the pilaster is not bonded into the wall and could have been erected with the upper parts of the wall, while the pier in the northeast corner (EN2) would seem from the bases to have been erected last, d) the inclined course on the west wall forms a strut (rather than a flashing, as there is no projection that would actually flash), and therefore the purpose of the strut was to stabilise the upper (c+) capitals on the east face, the nave pier still being 11 courses lower; therefore, can we hypothesize a square chamber in this bay, of sufficient importance for its protection during construction, accessed through the west door.
1130

Phase 20 - 1130 [1134] - se chapel (b) - 12 Units


On the south side of the choir the walls of the first chapel step down from east to west indicating a delay to the entry pilasters of that chapel, which have doubled shafts over a simpler plinth; once above the 10th course all courses are even again, and the use of doubled shafts in other phases may have been to retain unity.
1130

Phase 21 - 1130 [1139] - south (b) - 30 Units


A large program: the pilasters to the outer faces of the choir piers, outer walls of the two south chapels from the apse to the nave [green], and the layout for the treasury, and the plinths for the transept next to the south portal, all to a lower floor level than the choir; nothing could be constructed in the upper parts of the choir until these bases and next 44 courses of masonry were erected, at the earliest by phase 30; once these pilasters were in place the 1120s choir capitals could be moved up and work on the next 11 courses begun while the nave roof remained where it was; the bases have double plinths with a complex profile that continued along the wall inside and out and the torus outline is flattened with a large scotia that runs continuously between tori (under small shafts the outline seems almost vertical); against WS1 drum the remnants of shafts from the 1120s were covered by this pilaster that could only be added after the demolition of south nave aisle wall; in south-west corner the upper courses of the wall step down leaving an opening for the ingress of materials; the courses in this corner were gradually raised, though always well below the rest of the building [confirmed in the location of the curved imposts of Phase 34].
1130

Phase 22 - 1130 [1136] - trans piers (b) - 40 Units


The isolated south transept piers have the same plinths but with incised patterns on the vertical faces (though less visible where the floor has been raised); the three pilasters added onto the north side of the choir piers suggests this was when the last of any structures remaining from the chamber (Phase 19) were removed; note it is not possible to relate the ongoing work on the northern walls to the beginning in the south, and for convenience I have located the first imposts in the north as being after the last plinths in the south, though these campaigns would have overlapped, work a these levels in the north and the south being built at the same time.
1130

Phase 23 - 1130 [1139] - choir n3(c) - 30 Units


The type A impost with a groove and curve [blue]; to understand the order of the imposts there are five identifiable profiles, as noted on each plan; I will refer to them as A, B, A+, C and D; in the north wall the windows are set 2 courses above the capitals of the vaults, so B is after A; the shafts on the south side against the pre-existing wall of the apse would be quicker to build than the solid walling around the chapels and so A could be before A+ with a projecting roll under a cyma; once the arches across the second row were completed above the (c) level there are eleven courses before the capitals of the higher vaults at (c+).
1130

Phase 24 - 1130 [1139] - choir ne(c) - 30 Units


Impost B in the north wall at (c) level and one over the pilaster on the second choir pier [green]; the profile is a rectangular recess over a long simple curve; the capitals in this zone are from a dense stone and so fairly flatly carved foliates akin to the Palmier manner.
1130

Phase 25 - 1130 [1139] - choir nw(c) - 30 Units


Impost A+ in the (c) level [pink] includes the isolated pier between the chapels and the transepts with two levels of capitals for both the lower height of the chapels and the higher in the transept; they stand alone without any connections in the south; many of these capitals follow a similar flattened design that is not repeated in later work; these capitals may have been carved at the same time as those in Phase 24, but not placed immediately; once the north-to-south arches were completed above the (c) level there are eleven courses before the capitals of the higher vaults at (c+).
1140

Phase 26 - 1140 [1140] - choir n(v) - 30 Units


South of the choir most of the imposts to the chapels and their window heads [blue]; there may have been a delay after finishing the north (c) capitals and then proceeded with the south in the next phase, or they may have been simultaneous, indeterminable because it is not possible to relate the campaigns on the upper walls and vaults in the north to the plinths and lowest courses in the south, and so, for convenience, I have located the first imposts in the north as being after the last plinths in the south, though these campaigns may have overlapped.
1140

Phase 27 - 1140 [1141] - s windows (aw) - 45 Units


Impost B [green] capitals for two sets of shafts, one pier and one window; the window imposts are 9 courses below the (c) capitals, and therefore A is before B. It is not possible that the A profile in the (c+) level could be from the same campaign as the complexity of the vaults indicate a number of campaigns between them; so I suggest the south was erected in the order A, B, C, and B again in the (c+) level and, finally, D in the south-west corner; the presence of the Saint-Martin carvers among the last group suggests that work at the nearby abbey may have stopped by then.
1140

Phase 28 - 1140 [1142] - S-s door (a) - 24 Units


This may be when the capitals in the south door in the south wall (now blocked) with the impost B were carved, utilising some members of the St Martin&rsquo;s team; the outer face of the 2.5 metre thick wall in the south-west corner of the south transept may have been begun here, or a little later, and was so wide it covered the eastern corner of the south portal [see phase 17]; it may have been a temporary measure that became permanent, to support a large crane to help construct the vaults, and thereby reduce the builder&rsquo;s yard that impinged on the space of the market.
1140

Phase 29 - 1140 [1143] - s chapels (c) - 30 Units


Impost A in the southern chapels and windows marks the start of the lower vaults in the south just above the windows [blue]; the uppermost walls above the capitals to support the vaults are built from excellent ashlar all round the north.
1140

Phase 30 - 1140 [1144] - n choir (c) - 30 Units


All the northern lower (c) vaults had been proceeding over a number of these campaigns, probably including the two bosses with the radiating kings.
1140

Phase 31 - 1140 [1145] - choir n(c+) - 120 Units


All the capitals for the (c+) north transept piers and crossing with impost C [yellow] being a simple curve; the two on the west wall of the south transept may have been carved at the end of this campaign as WS1(c+) is incomplete; above the level of the (c) capitals, on either one side or the other, some courses of the added pilasters against the crossing drum seem loosely bonded into the courses of the drums, suggesting that the upper courses of the pilasters and the adjacent courses of the drums were built together; this means that the uppermost parts of the drums were extended after the choir of the 1120s, and thus the earliest dates for the upper courses seem to be determined by the bases to these pilasters; the decision to install a groin vault over the crossing may have been because there was no space at the top of the piers to rest a rib across one of the largest spans from that period, and a groin vault was the safest solution within their experience; as each pilaster has 44 courses from bases to imposts they would not have been the work of a few weeks, and would have been continued over many years and different campaigns.
1150

Phase 32 - 1150 [1155] - choir (c+) - 120 Units


This could be when the older choir capitals were raised and reset at the (c+) level; in the upper wall of the eastern choir windows the coursing is continuous between the corner pilaster and the window frames, showing that the whole section above the string course was built at the same time, and on the outside the continuous coursing ties this wall in with the uppermost courses of all four chapels; the style of the capitals in the upper windows of the eastern choir, both inside and out, is similar to that in the uppermost part of the adjacent treasury [blue], and as they are more in the style of the 1150s we need to explain (a) the great gap in time between them and the 1120s choir capitals in the corners just a few courses below, and (b) the continuous coursing of the whole of the (c+) choir including the capitals over the eastern window and the vaulting of the treasury; this phase included the upper capitals (c+) in the wall across the west face over the lower southern vaults.
1150

Phase 33 - 1150 [1156] - choir s(c+) - 130 Units


33 Impost B (green) in the upper vaults of the south transept; unlike the north there was no matching profiles on the external southern wall; the carvers came from St-Martin; the presence of this team in the facing (c+) capitals in the eastern crossing and the use of the same imposts links the crossing clerestory to the surrounding work.
1150

Phase 34 - 1150 [1158] - s trans (c+) - 40 Units


Walls to south-west corner of the south transept under impost D [purple] where work had been held back, presumably because this is where the materials were delivered for the vaults, and when one considers the streets available for delivery the builders would have needed an accessible delivery area; there are three sets of capitals, all with the same impost D, that flank the two southern rose windows, the walls that encase them and the vaults in southwest corner; capitals in the south crossing pier with carvers from St-Martin [one using a stylized Palmier format], which may help link the programs in both buildings; also in the south wall in Es1n(c+) there is work by a Palmier-copyist.
1190

Phase 35 - 1190 - west (c+) - 22 Units


All this time the lower roof at the (c) level over the nave was still in place, making it difficult to build the 16 courses above the (c+) capitals in the two bays flanking the nave on western side of the transepts [red lines and blue shaded areas in ARK images]; there was thus a &lsquo;hole&rsquo; in the centre of the building until the upper nave walls and these two in the transepts could be finished; when they did proceed the outer faces were built of rubble that is occasionally toothed into the ashlar buttresses; the walls have unique window frames and string courses; the joint and the stepped junction at the level of the capitals shows that these rubble walls were totally separate phases of work to the rest of the transept clerestories; the filling of the &lsquo;hole&rsquo; had to be after the upper walls of the transepts, north and south, and could have been contemporary with the organ loft in the next phase
1190

Phase 36 - 1190 - w portals - 30 Units


The western wall with three portals, the passage on the south and the chapel on the north were built and vaulted, and the interior of the tower base was encased in ashlar with reinforcing arches; this was extended to meet the piers of the nave enlarging the whole of the ground floor for the support of the intended tower and spire and to provide lateral bracing over what might well have been considered shaky foundations; in the northwest corner of the southern passage the encasement stops at the western end where a small part of the earlier tower remains exposed.
1190

Phase 37 - 1190 - organ loft (c+) - 25 Units


Above the enlarged lower level the tower was encased in ashlar with a large window on the west and two rib vaults on the inside; the large opening on the east behind the organ is framed by small shafts that begin below the level of the nave string course (c), and the coursing is loosely bonded with the drums above the nave clerestory sills, showing this wall was built with upper 11 courses of the adjacent drums, and with it the raising of the height of the capitals; the other nave capitals may have been raised to this level at the same time in which case the earlier roof over the nave at the string level would have been removed; the joints on the inside indicate that the jambs for the nave clerestory windows were begun at the same time, though to different designs in the north to the south indicating a number of campaigns; during this time the lower roof over the nave remained in place.
1200

Phase 38 - 1200 - tower, spire - 40 Units


Tower III and IV with three levels of octagonal corner shafts., merging into the spire.
1230

Phase 39 - 1230 - nave (c+) - 45 Units


Nave clerestory windows completed with jambs bonded above the drum piers, and plate tracery with templates that are different on north to south, though each side followed a common intention; as a skeletal construction with such wide windows it would have benefitted from flying buttresses; the completion of the crossing included the two adjacent western transept walls above the level of the (c+) capitals both built full height of rubble set against the earlier transept buttresses and not bonded; the same rubble walls were continued over the nave windows.
Later

Phase 40 - Later - sacristy


A middle floor was added over the sacristy with vaults and the height of the upper chamber raised; the staircase came later, as did the crenelated surrounds to the nave.
Later

Phase 41 - Later - WN1(a) shaft


On the ground floor the corner drum in the northeast nave was reinforced with the addition of a shaft on the north side and additional voussoirs to the southern half of the transverse arch, which is why the apex of the entry arch into the aisle is misaligned to the south