Henry IV of England her marriage to the King of England was childless. By an unknown mistress, Henry IV had one illegitimate child: Henry IV of England Henry IV (15 April 1367 – 20 March 1413), also known as Henry Bolingbroke (), was King of England from 1399 to 1413, and asserted the claim of his grandfather, Edward III (himself a maternal grandson of Philip IV of France), to the Kingdom of France. Henry was born at Bolingbroke Castle in Lincolnshire. His father, John of Gaunt (1340-1399) (created 1st Duke of Lancaster in right of his wife), was the fourth son (third to survive
Henry VI of England 10 July 1460. The Duke of York was killed by Margaret's forces at the Battle of Wakefield on 30 December 1460, and Henry was rescued from imprisonment following the Second Battle of St Albans on 17 February 1461. By this point, however, Henry was suffering such a bout of madness that he was apparently laughing and singing while the battle raged. He was defeated at the Battle of Towton on 29 March 1461 by the son of the Duke of York, Edward of York, who then became King Edward IV. Edward failed to capture Henry and his queen, who fled