Henry IV of England 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 to adulthood) of King Edward III and enjoyed a position of considerable influence during much of the reign of
Henry IV, Count of Waldeck in 1307. A deed sealed by King Albert I of Germany from March 1308 mentions that Peter and Henry IV have reconciled their differences. Henry was then released from prison. In 1312, he promised Landgrave Otto I to support him in his dispute with the Duchy of Brunswick-Lüneburg. The Dukes of Brunswick-Lüneburg were also fighting a feud against the Archbishopric of Mainz, whose Amtmann Henry IV had been since 1305. Close to Brunswick's Schonenberge Castle, Henry IV built a castle of his own, in order to neutralize Schoeneberge. In 1313, he made an alliance with Archbishop Peter of Mainz against