Lincoln Castle Revealed – The 3-D Reconstruction of the 12th-Century Castle

In its latest round of grants the Castle Studies Trust funded an ambitious 3-D reconstruction of the 12th-century form of Lincoln Castle. Project lead, Jonathan Clark, explains the background to and aims of the project.

Lincoln Castle is one of England’s great castle complexes, developed during an initial intense period of use which straddles the Conquest through to the first half of the 13th century.  The reconstruction builds on the work of the recent Lincoln Castle Revealed project, which involved the conservation and repair of the castle fabric and bailey buildings, the creation of a new exhibition space, and provided a wealth of opportunities for research-led archaeology.  The results of the archaeological campaign – which encountered remains from every century from the 1st to the 20th – have greatly enriched the story of the site as a whole.

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Archaeological investigations encountered elements of the Roman fortress and later Roman Upper City, the defensive enclosures of which appear to have shaped future land-use patterns well into the medieval period, including the form of the castle. The west and south Roman walls stood long into the medieval period; indeed, parts of the western defences still stand to the south of the west castle wall. The southwestern corner of the Roman fortress provided the western and southern extent of the castle bailey.

Surveying the Observatory Tower.  While the current external appearance of this tower is entirely due to changes in the 1830s, the interior fabric still retains important evidence as to its earlier form.

The main development of the castle in stone appears to be from the 1080s into the mid 12th century, a period which will be captured by the reconstruction.  This campaign of work included the construction of East and West Gates, the stone enclosure of the bailey, the 12th-century Lucy Tower shell keep, the development of internal ranges against east and west curtain walls, adjacent to the gates, and a hitherto unknown South Gate.  The South Gate position has been identified in the fabric of the south curtain wall, while its appearance has been confirmed by an early draft plan of Lincoln by John Speed, dated to 1607.

The Lucy Tower Motte after the removal of dense vegetation.  The fragmentary masonry remains of a structure can be seen towards the top of the trench.

The investigations also provided valuable new information about the form and development of the main shell keep (the Lucy Tower) and the southeastern tower (known from the early 19th century onwards as the Observatory Tower).  The Observatory Tower, which briefly upstaged the Lucy Tower during the Anarchy years of the early 12th century, was originally detached from the rest of the castle bailey by a substantial ditch.  This ditch featured a stone revetment on the tower side which was carried up to encase the lower part of the mound on which the tower sits.  The tower was subsequently remodelled to serve as gaol tower.  More is now known of the Lucy Tower including the form of the roof, openings and the arrangement of rectangular chamber blocks, or turrets, to the east and west of it.

A segment of the interior wall face of the Lucy Tower.  The small sockets are putlog holes, while the large blocked sockets housed timbers that joined with a timber ring-beam.

The remains of the main castle hall and various service buildings were also investigated as part of the Lincoln Castle Revealed project.  Their positions are now accurately plotted within the castle bailey and these buildings are being added to the 3-D reconstruction.

A book on the archaeological discoveries from the project is forthcoming but the 3-D reconstruction will allow all to visualise an explore Lincoln Castle at its zenith.   The reconstruction is being prepared by Pighill Archaeological Illustration advised by the Lincoln Castle Revealed archaeological team.

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All pictures in this article are copyright of the author of the article Jonathan Clark

Our five projects for 2020

The results are in, we’ve decided which projects we will be funding for 2020.

But before we get to the announcement, we want to thank all the applicants who proposed projects. It was a difficult decision, with exciting and innovative approaches to a group of fascinating castles. This year marks a milestone for us: we are award £30,000 across the successful projects which is the most we’ve given in a single year.

So without further ado, here are the five projects we will be funding in 2020. We hope you are looking forward to discovering more about them.

Lincoln Castle

Photo by Gustavo Faraon, licensed CC-BY-NC 2.0

The project will develop a reconstruction drawing of the castle, as it would have been in the latter part of the 12th century, founded by William the Conqueror, in the second half of the 11th century.

Shrewsbury Castle

We will be funding a second year of excavation, following on from 2019, this time to understand the rampart of the inner bailey.

Sowing the Seeds

Castlecarra is one of the sites to be investigated. Photo by Karen Dempsey.

The aim of the project is to try and understand better everyday life in castles by seeing if there are any surviving plants at four Irish castles that were planted, grown, and cared for by medieval people.

The Wirk

Could the Wirk be a Norse castle? Based on the island of Rousay, this stone tower is situated close to the old parish church and recently discovered Norse Hall. However, no one knows what this tower was used for or even when it was built.

Warkworth

 Photo by Karl Davison, licensed CC-BY-NC 2.0

Using various forms of geophysical survey to try and understand the subsurface features for the former caput of the Earls of Northumberland.

Donate regularly for invitation to exclusive site visits

Regular donors will be invited to all exclusive visits to the projects we fund.

Those who are able to donate £500 a year or more (excluding Gift Aid) will also have the opportunity to attend our annual special castle visit to major/privately owned castles. In 2020 this will be at Edinburgh Castle on Saturday 6 June where we will visit parts of the castle not open to the public.

Any new donations by standing order or payroll giving will be matched by a generous supporter for the next two years up to a maximum of £2,000 a year in total.

You can donate regularly via payroll giving or by setting up a standing order. Please return the form to the address on the forms, with the gift aid form if applicable.

A Large and Eclectic Crop of Fascinating Applications for the Castle Studies Trust to Consider

The deadline for grant applications passed on 30th November. We’re going through the various projects now. Altogether the 13 projects, coming from England, Ireland, and Scotland are asking for over £88,000. They cover not only a wide period of history but also a wide range of topics. In a little more detail, here are the applications we’ve received:

Bamburgh, Northumberland

Photo by Thomas Quine, licensed CC BY 2.0.

The main aim is to recover evidence for the base natural topography around the approach to the main gate of the once royal castle, from the area of the medieval village, and explore how this was altered, presented and exploited to create a sense of theatre for visitors to the site.

Berkhamsted, Hertfordshire

Photo by Sean Wallis, licensed CC BY NC 2.0.

A geoarchaeological auger survey of the moats that surround this former royal castle and palace of Thomas Becket. The survey aims to answer such questions as what were the moats original profiles, when were the moats filled and how do the two moats compare with each other.

Dunollie, Argyll

Photo by Paul Lloyd, licensed CC BY NC SA 2.0.

To try and understand the date of the construction of the castle owned by the MacDougall clan through various through buildings and materials analysis including radiocarbon dating and mortar analysis.

Fraoch Eilean, Loch Awe

Photo by Andrea Hope, licensed CC BY SA 2.0.

To try and understand the date of the construction of the former royal castle through various through buildings and materials analysis including radiocarbon dating and mortar analysis.

Hoghton, Lancashire

The aim of the project to continue the work the CST funded in 2019 with excavations and building survey. Further excavations will try and understand the purpose of the structures found in the 2019 excavation season and if they were related to the original great tower.

Holme Pierpont, Nottinghamshire

To build up an understanding of this late medieval great house, never previously researched. The work will include a mixture of desk research, building survey and geophysical survey of the parkland surrounding it. The house is the most complete of the three late medieval brick-built houses in Nottinghamshire.

Lincoln, Lincolnshire

Photo by Ben Keating, licensed CCY BY NC SA 2.0.

To develop a reconstruction drawing of the castle as it would have appeared in the second half of the 12th century. Lincoln Castle was founded by William the Conqueror in the late 11th century.

Shrewsbury, Shropshire

To fund a second year of excavation, this time to understand the rampart of the inner bailey. The geophysical survey carried out in the 2019 suggested there could be remains of buildings there, possibly even a late Saxon church. Shrewsbury was a very important border castle up until the 13th century and frequently used as a base for English raids into Wales.

Sowing the Seeds

Hortus conclusus depicted by Meister des Frankfurter Paradiesgärtleins

The aim of the project is to try and understand better everyday life in castles by seeing if there are any surviving plants at four Irish castles that were planted, grown and cared for by medieval people. The research will involve ecological surveys at each location.

Strongholds of Wessex

Photo of Silbury Hill by Greg O’Beirne, licensed CC BY SA 3.0.

The aim of the project is to understand the military organisation of the northern part of Wessex (Wiltshire and West Oxfordshire) from the transition from Saxon to Norman rule between the 9th and 12th centuries. The work will involve documentary research, landscape and place name surveys. Sites examined will include Castle Combe, Cricklade and Silbury Hill.

The Wirk, Orkney

Rousay - The Wirk

Could the Wirk be a Norse castle? Based on the island of Rousay, this stone tower is situated close to the old parish church and recently discovered Norse Hall. However, no one knows what this tower was used for or even when it was built. The work would involve a geophysical survey of the surrounding area as well as two trial trenches to try and find dating evidence.

Thermal Imaging of Castles

A thermogram of Cirencester Roman amphitheatre by Dr John Wells, licensed CC BY SA 4.0.

To test how useful thermal imaging could be in understanding castles. The thermal survey using a FLIR camera of two castle facades in different climates. within the UK—Caisteal Uisdein, on the coast of Loch Snizort, and a castle farther south and slightly inland, Castle Rising.

Warkworth, Northumberland

Photo by Barry Marsh, in the public domain

Using various forms of geophysical survey to try and understand the subsurface features for the former caput of the Dukes of Northumberland. The survey will focus on the bailey inside the 12th-century curtain wall as well as the strip of land outside but on the early earthwork castle, the motte and field near the entrance to the castle.


The applications have been sent to our expert assessors who will go over them. And if you want to know more about how the assessment process works, we have a brief summary.

4 women who made their mark on castles

The Barons’ War and Lady Nicolaa de la Haye

King John’s reign is notorious for his disagreements with his barons, leading to the signing of Magna Carta, civil war, and an attempt to Prince Louis of France on the throne. In 1215 Nicolaa de la Haye became castellan of Lincoln Castle, a title previously held by her father. She held the castle for John, and established a truce with one of the rebellious barons when they invaded the town of Lincoln.

King John visited Lincoln in 1216 and Nicolaa asked the king to be relieved of guardianship of the castle, saying that she was too old and wanted to be unburdened by the duty. John valued her staunch support, and declined her request. In fact, on 18 October he made Nicolaa sheriff of Lincolnshire – it was very unusual for a women to have such a position of direct power at the time, and shows how important Nicolaa was to the king’s efforts.

The battle of Lincoln (1217) from Matthew Paris’ Chronica Majora

Though John died on 19 October 1216, the war continued with his supporters fighting for his son, the young King Henry III, while the rebellious barons continued to back the French prince. The war came to a head at the battle of Lincoln on 20 May 1217, resulting in a royalist victory which turned the tide in favour of Henry III. Nicolaa was instrumental in defending Lincoln Castle, but was removed as sheriff just a few days later.

Alice Knyvet stands up to the king

Buckenham Castle lays close to the village of New Buckenham in Norfolk. The circular keep, remains of which are the only surviving building works of the castle, is the earliest known in England dating to c. 1145-50. The castle was demolished in the 1640s by Sir Philip Knyvet, perhaps as a request from Parliament.

The Easter Sepulchre at St Martin’s church in New Buckenham reputedly once contained the remains of Alice Knyvet. Photo by Evelyn Simak, licensed CC BY-SA 2.0.

Contained in the Patent Rolls of King Edward IV’s reign is a story detailing the defence of Bokenham Castle by Alice Knyvet. In 1461, Edward IV claimed Bokenham Castle by virtue of legal inquisition. The castle was, at the time, owned and occupied by John and Alice Knyvet, who did not easily relinquish their estate. The king sent nine commissioners and an escheator to take the castle, possibly knowing that John was away and the castle would be easily handed over.

However, as they approach the outer ward, Alice appeared in the gatehouse tower with the drawbridge raised who kept the castle ‘with slings, parveises, fagots, timber, and other armaments of war’ (CPR, 1461-7, p. 67). We are told that Alice along with William Toby of Old Bokenham, gentleman, and fifty other persons were ‘armed with swords, glaives, bows and arrows’. Alice addressed the commissioners thus:

Maister Twyer ye be a Justice of the Peace. I require you to keep the peace, for I will not leave possession of this castle to die therefor and if ye being to break the peace or make any war to get the place of me, I shall defend me, for liever I had in such wise to die than to be slain when my husband cometh home, for he charged me to keep it (CPR, 1461-7, p. 67).

The narrative described in the Patent Rolls is telling for a number of reasons. Fistly, Alice does not appear to hesitate when royal officials approached her castle demanding that they legally had the right to seize it. Secondly, the fact that the royal commission waited until Alice husband, John, left speaks to their utter miscalculation of her authority and ability to militarily command the battlements. Ultimately, no actual physical fight took place, but Alice’s strategic placement of armed people on the towers meant the castle, at least, appeared to be well defended.

Queen Mary takes control

James II and Queen Mary

Though little remains of Roxburgh, in the Middle Ages it was one of the most important castles in Scotland. King David I ruled Scotland from here and it changed hands several times during the wars between England and Scotland. In 1460 King James II besieged the English-held Roxburgh in an attempt to capture the castle. He died when a cannon he was stood next to exploded. The gun might have been fired to mark Queen Mary’s arrival.

Mary took charge of the siege and summoned her young son to be present when the castle fell. The Scots captured the castle they chose to demolish it. James II’s prize had come at too high a price. The 9-year-old James III was too young to rule on his own so Mary was the power behind the throne for the next few years until her death in 1463.

Lady Anne Clifford and Brougham, Brough, and Appleby

Lady Anne Clifford with her family

By the time the English Civil War broke out in 1641, many castles were neglected or downright ruinous. While some were pressed into action during the conflict, many suffered further damage from siege or slighting.

Lady Anne Clifford had spent years trying to secure her inheritance which included a number of castles. In Westmorland, her castles at Appleby and Brougham had been besieged and damaged during the war, as was the case with Skipton in Yorkshire. From 1650 Anne used her considerable well to repair and restore these castles, as well as Brough which was gutted by fire in 1521. She established Brougham Castle as her main residence and created a garden on the site of the adjacent Roman fort. It is likely that without Anne’s intervention these historic sites would have slipped further into decay and may have become lost to us.