Birth of eldest son
Eldest son of Edmund Crouchback, 1st Earl of Lancaster and Blanche of Artois, paternal grandparents are Henry III of England and Eleanor of Provence
Historical biography archive · Updated 2026-11-03
Thomas of Plantagenet Biography and Timeline
Follow Thomas of Plantagenet through 23 dated historical records for England.
Thomas of Plantagenet, historical timeline
A chronological timeline drawn from matching World History Database records.
23Distinct records
1 of 1Page
1278–1322Years on this page
1278
1308
Coronation
Serves in the coronation of his cousin, King Edward II, carrying Curtana, the sword of St Edward the Confessor
Exile of Thomas of Plantagenet
Causes the exile of the King's favourite, Piers Gaveston
1311
Marriage
By his marriage to Alice de Lacy, Countess of Lincoln, daughter of Henry de Lacy, 3rd Earl of Lincoln, he became Earl of Lincoln, Earl of Salisbury and the 11th Baron of Halton upon the death of his father-in-law
Peerage
By his marriage to Alice de Lacy, Countess of Lincoln, daughter of Henry de Lacy, 3rd Earl of Lincoln, he became Earl of Lincoln, Earl of Salisbury and the 11th Baron of Halton upon the death of his father-in-law
1312
Constitution of England
One of the Lords Ordainers who demands the banishment of Gaveston and the establishment of a Baronial oligarchy. Lancaster forces Edward II to surrender powers to the 21 Lords Ordainers
Execution
Lancaters private army separates the King and Gaveston, and Lancaster is one of the "judges" who convicts Gaveston and sees him executed
1313
Dunstanburgh Castle
Begins the construction of Dunstanburgh Castle a massive fortress in Northumberland
Dunstanburgh Castle
Begins the construction of Dunstanburgh Castle a massive fortress in Northumberland
1316
Parliament
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"
Invasion of England
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". Lancaster is unwilling to commit himself to military action in the north if this left Edward free to organise opposition back home
Rebellion of Adam Banaster
Some of Lancaters own vassals under the leadership of one Adam Banaster rise up against him. Banaster is captured and his severed head presented to Earl Lancaster
Rebellion of Bristol is in
The town of Bristol is in revolt for two years
1318
Siege of Berwick
Earl of Douglas captures Berwick castle during the conflicy between Lancaster & Douglas
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
Siege of 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
Siege of 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
Siege of 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
Restoration
Reconciled with Edward II after his private war against Earl Warenne, negotiates the Treaty of Leake restoring Edward to power
Treaty of Leake
Reconciled with Edward II after his private war against Earl Warenne, negotiates the Treaty of Leake restoring Edward to power. Aymer brokers a deal when Lancaster agrees to relinquish power, in return for a pardon for himself and his followers
1322
Battle of Boroughbridge
Defeated by Edward II & beheaded
Death of Thomas of Plantagenet
Death of Thomas of Lancaster, executed
Execution
Executed after being defeated at Boroughbridge by Edward II
Records, sources and methodology
These dates and descriptions come from the historical_events database. Exact duplicate records have been collapsed. Names are grouped by the country, Name 2 and Name 1 fields; records with missing Name 2 cannot be reliably assigned to an individual biography. Check the underlying sources before formal citation.