| 1120 | | Kenilworth Castle formed
|
| | Henry I gave a portion of the Stoneleigh estate to Geoffrey de Clinton his chamberlain. de Clinton built a motte and bailey on the land and formed a lake to provide better defences. |
| 1173 | | Henry takes control of Kenilworth
|
| | With the threat of attack from the Barons and his own sons, Henry II took control of Kenilworth Castle and defended it with a small army of men. |
| 1180 | | Kenilworth Castle keep
|
| | The massive keep at Kenilworth was under construction during this period. |
| 1182 | | Kenilworth Castle becomes the King's property
|
| | Henry de Clinton exchanged Kenilworth Castle for other land? |
| 1210 - 1215 | Kenilworth Castle defences improved
|
| | King John spent time and money on the castle at Kenilworth, building outer walls and raising the height of the lake. |
| 1243 | Spring | Simon de Montfort gets custody of Kenilworth castle
|
| | Henry III bestowed the custody of Kenilworth castle to Simon de Montfort. Simon's wife Eleanor (Henry's sister) already owned Odiham Castle so Simon had two of the strongest fortresses in England under his control. |
| 1258 | Jun | Odiham and Kenilworth handed over to the King
|
| | As an act of faith, Simon de Montfort handed over his castles at Odiham and Kenilworth as part of the proposals put forward in the Provisions of Oxford. |
| 1264 | Summer | Edward moved to Kenilworth
|
| | Edward (I) was held captive at Wallingford Castle but after an escape attempt he was moved to Kenilworth Castle. |
| 1265 | Summer | Armies march
|
| | Simon's son was sent to London to raise money and troops. He diverted back through Winchester which was loyal to the king and then moved through Oxford and Northampton. Edward (I) moved from Worcester to Bridgnorth destroying bridges and means of allowing Simon who was on the Welsh side of the Avon from crossing back. The people of Bristol, friendly to Simon's cause sent ships to Newport to help Simon cross, but they were intercepted and destroyed by Edward. Meanwhile, Simon's son was attacked at Kenilworth during the night and taken completely by surprise had no chance to defend himself. |
| Aug 4 | Battle of Evesham
|
| | Using the banners of Simon's son captured forces at Kenilworth, Edward (I) approached Simon's position at Evesham. Simon was hemmed in the bend of the river Avon and forced to fight. Simon was defeated and killed. Simon's youngest son took refuge in Kenilworth castle , where prepared for a long siege, managed to hold out until December 1267. |
| Sep 16 | Peace with the Barons
|
| | After the defeat of Simon de Montfort at Evesham, a limited agreement of peace was declared between Henry and the barons. Some resistance remained at Kenilworth and the Isle of Ely until 1267. |
| 1266 | Oct | Mise of Kenilworth
|
| | The rebel barons were given the option by Edward to buy back their properties. Edward was careful not to cause friction between the king and the barons that may have restarted a war. |
| 1326 | Nov | Edward captured
|
| | The King was captured in Wales at the Abbey of Neath. He had hoped to get some support in Wales but that was not to be the case. The Despensers were also captured. Hugh Despenser was given a short trial and executed as a traitor. Edward was taken to Kenilworth castle and imprisoned. |
| 1361 - 1399 | John of Gaunt owns Kenilworth
|
| | John of Gaunt married Blanche, the daughter of Henry, Duke of Lancaster. Henry owned Kenilworth Castle and when he died (?) John became Duke of Lancaster and took ownership of the castle. Gaunt rebuilt the hall and constructed new grand apartments. |
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