Fey, vain and foolish young Richard initiates his downfall by banishing Henry Bolingbroke and the Earl of Mowbray as a resolution to their feud and then confiscating the lands of his uncle, Bolingbroke's father John of Gaunt, on John's death, to pay for a war in Ireland which he loses. This angers many courtiers, including the Duke of York, who welcome Bolingbroke back to England, where he executes Richard's flatterers. The king himself is soon taken prisoner and murdered in his cell. Bolingbroke, now proclaiming himself Henry IV, vows a pilgrimage to atone for his part in the regicide.