The eldest son of
William Bardolf, 4th Baron Bardolf of Wormegay and his wife Agnes de Poynings, Thomas inherited his father's titles as the 5th
Baron Bardolf. He was summoned to the
Parliament of England from 12 September 1390 to 25 August 1404. In 1405 he joined
Henry Percy, 1st Earl of Northumberland in
insurrection against King
Henry IV. But their allies
Thomas Mowbray (Earl Marshall), and
Richard le Scrope,
Archbishop of York, were defeated in Yorkshire by
John of Lancaster and
the Earl of Westmorland, and Bardolf and Northumberland fled to Scotland. In 1408, Bardolf followed Northumberland in a new invasion of England from Scotland. But at the
Battle of Bramham Moor, the rebels suffered a total defeat. Northumberland was slain, and Lord Bardolf was "so much hurt" that he died of his wounds soon after. Bardolf had married Avicia (or Amice), daughter of
Ralph de Cromwell, 2nd
Baron Cromwell. He left two daughters, Anne and Joan, his co-heirs. However, his honours and lands had already been forfeited to the Crown by
attainder. ==Aftermath==