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| 1278 | Birth |  |
| Birth of Thomas of Lancaster, grandson of Henry III |
| 1308 | Exile of Lancaster | |
| Causes the exile of the King's favourite, Piers Gaveston |
| 1312 | Constitution | |
| Lancaster forces Edward II to surrender powers to the 21 Lords Ordainers |
| 1316 | Invasion of England | |
| Lancaster is unwilling to commit himself to military action in the north if this left Edward free to organise opposition back home |
| Lancaster organizes an army at Newcastle to march against the Scots but returns home as soon as the king refuses to accompany him, "neither trusted the other" |
| 1316 | Parliament | |
| Lincoln The Lincoln Parliament declares "that the lord king should do nothing grave or arduous without the advice of the council, and that the Earl of Lancaster should hold the chief place in the council" |
| 1316 | Rebellion | |
| Lancashire Banaster is captured and his severed head presented to Earl Lancaster |
| Lancashire Some of Lancater's own vassals under the leadership of one Adam Banaster rise up against him |
| Bristol The town of Bristol is in revolt for two years |
| 1318 | Invasion of England | |
| The Scots then march through Northumberland and Durham into Yorkshire, burn Northallerton and Boroughbridge on their way, pocket the sum of a 1,000 marks for agreeing to leave Ripon alone, before going home again |
| 1318 | Restoration | |
| Leake Reconciled with Edward II after his private war against Earl Warenne, negotiates the treaty of Leake restoring Edward to power |
| 1318 | Siege of Berwick | |
| April Berwick Earl of Douglas captures Berwick castle during the conflicy between Lancaster & Douglas |
| 1318 | Siege of Boroughbridge | |
| Boroughbridge The Scots then march through Northumberland and Durham into Yorkshire, burn Northallerton and Boroughbridge on their way, pocket the sum of a 1,000 marks for agreeing to leave Ripon alone, before going home again |
| 1318 | Siege of Northallerton | |
| Northallerton The Scots then march through Northumberland and Durham into Yorkshire, burn Northallerton and Boroughbridge on their way, pocket the sum of a 1,000 marks for agreeing to leave Ripon alone, before going home again |
| 1318 | Siege of Ripon | |
| Ripon The Scots then march through Northumberland and Durham into Yorkshire, burn Northallerton and Boroughbridge on their way, pocket the sum of a 1,000 marks for agreeing to leave Ripon alone, before going home again |
| 1318 | Treaty of Leake | |
| Leake Aymer brokers a deal whereby Lancaster agrees to relinquish power, in return for which he receives a pardon for himself and his followers |
| Leake Reconciled with Edward II after his private war against Earl Warenne, negotiates the treaty of Leake restoring Edward to power |
| 1322 | Battle of Boroughbridge | |
| 16th Mar Boroughbridge Defeated by Edward II & beheaded |
| 1322 | Death | |
| Pontefract Death of Thomas of Lancaster, executed |
| 1322 | Execution of Thomas | |
| Pontefract Executed after being defeated at Boroughbridge by Edward II |
