Sir Thomas de Brus was a son of Robert de Brus, 6th Lord of Annandale and Margaret, Countess of Carrick and thus a younger brother of King Robert I of Scotland. He supported his brother in the Wars of Scottish Independence, ultimately being captured in the Battle of Loch Ryan and later executed.
- Born
- 1284
- Died
- February 9, 1307, February 9, 1307