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| 1215 | Constitution |  |
| 1 of 25 barons entrusted with carrying out the Magna Carter |
| 1217 | Peerage | |
| Gloucester Created Earl of Gloucester, 6th |
| 1243 | Birth | |
| 7th Dec Birth of Gilbert the Red |
| 1252 | Marriage | |
| Gilbert the Red marries Alice of Angouleme, a niece of Henry III. |
| 1253 | Marriage | |
| Marries a niece of Henry III |
| 1255 | Envoy | |
| Appointed Envoy to Scotland |
| 1256 | Envoy | |
| Appointed Envoy to Germany |
| 1258 | Rebellion | |
| Joins forces with Simon de Montfort |
| 1262 | Peerage | |
| Becomes the 9th Earl of Clare, the 7th Earl of Hertford and the 8th Earl of Gloucester |
| 1263 | Peerage | |
| Glamorgan Created Lord of Glamorgan |
| 1263 | Rebellion | |
| Joins forces with Simon de Montfort |
| 1264 | Alliance | |
| June London Falls out with de Montfort after the latter's alliance with the Welsh |
| 1264 | Battle of Lewes | |
| 14th May Lewes Contributes to Simon de Montfort's victory |
| 14th May Lewes Fights for the barons at the battle of Lewes |
| 14th May Lewes Helps Simon de Montfort to victory at the battle of Lewes |
| 1264 | Capture of Rochester | |
| April Rochester Helps Simon de Montfort capture Roches ter |
| 1264 | Parliament | |
| June London Montfort and Gilbert organize a new parliament |
| 1265 | Alliance | |
| The Earl of Gloucester changes sides & joins the Royalists |
| 30th May Ludlow Prince Edward & the Earl of Gloucester meet & agree to restore Henry III |
| 1265 | Defeat | |
| 8th Sep Winchester Present when the rebel lords are disinherited of their estates |
| 1265 | Mobilization | |
| Joins forces with Prince Edward in repelling de Montfort |
| June Ludlow Edward I joins forces with Gilbert the Red, his 2nd in command |
| 1265 | Siege of Gloucester | |
| June Gloucester Edward I & Gilbert the Red capture Gloucester |
| 1266 | Arrest | |
| Kilkenny Trans fers Gruffydd ap Rhys to Clare Castle in Kilkenny |
| 8th Sep Cardiff Captures Gruffydd ap Rhys & imprisons him in Cardiff |
| 1267 | Capture of London | |
| London Helps Prince Edward capture London |
| 1267 | Rebellion | |
| Withdraws to Wales & wages a war against Roger Mortimer |
| 1267 | Siege of London | |
| London Arrives in London while Edward is in the north & Henry is in Cambridge |
| London Edward I offers concilliation to Gloucester who accepts & wins royal favour |
| London Joined by Eyville & the Ely fugitives to reverse the results of the battle of Evesham |
| Tower of London Lays siege to the Tower of London |
| 1268 | Caerphilly | |
| Caerphilly Caerphilly castle is built during the conflict with Llywelyn ap Gruffudd |
| 1270 | Siege of Caerphilly | |
| Caerphilly Captures Caerphilly from the rebels led by Llywelyn ap Gruffydd |
| 1271 | Restoration | |
| Reconciles with Henry III & obtains restoration of the lands of disinherited Barons |
| 1276 | Invasion of Wales | |
| Leads an invasion of Wales, 1276-1283 |
| 1289 | Parliament | |
| London Demands Parliament not act against the judiciary until Edward I returns to England |
| 1289 | Rebellion | |
| Marches Conducts a private war against the Earl of Hereford |
| Marches Disputes the boundary between Glamorgan & Brecon |
| 1290 | Marriage | |
| London Gloucester's land is taken by the Crown & held for Joan's heirs if Gloucester defaults |
| Marries Joan, daughter of Edward I |
| Marries Joan of Acre, daughter of Edward I |
| 1295 | Death | |
| 7th Dec Death of Gilbert the Red |
| 1313 | Peace | |
| Mediates between Edward II & Lancaster |
| 1314 | Battle of Bannockburn | |
| Bannockburn Killed in battle, last in the Clare line |
| 1314 | Death | |
| Bannockburn Death of Gilbert de Clare, killed at the battle of Bannockburn , last in the male line of the Clare familly |
