Colonel Dudley Bagenal or Bagnall (c.1638 – 27 July 1712) was an Irish soldier, Jacobite politician and courtier.
Dudley was educated at St John's College, Oxford, matriculating 8 December 1658, and he entered the Middle Temple the same year to train in law.
Bagenal briefly fled to France during the Popish Plot owing to his Catholicism and association with the Duke of York.
[1] During the Williamite War in Ireland, Bagenal raised and commanded his own regiment for the Jacobites which was present at the Battle of the Boyne.
Bagenal emigrated to France shortly afterwards and was appointed a Gentleman Usher to James' exiled court at Château de Saint-Germain-en-Laye.