Career
He led the Londoners at the Battle of Lewes, where he was taken prisoner, and fought at the Battle of Evesham. He resisted the King, Henry III at Kenilworth, and, after the Dictum of Kenilworth he commanded the last remnants of the baronial party when they made their last stand in the Isle of Ely, submitting to King Henry in July 1267. Henry was the only son of Sir Henry de Hastings and Ada of Huntingdon, one of four daughters of David of Scotland, 8th Earl of Huntingdon and Maud of Chester.
Henry married Joan de Cantilupe, daughter of William III de Cantilupe and Eva de Braose.