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 IV, Burgrave of Plauen who tried to regain the Lordship of Gera. On 22 January 1542, King Ferdinand appointed Henry IV to High Chancellor of the Crown of Bohemia, King's Counsel and Treasurer. Henry was instrumental in the Treaty of Prague that was sealed on 14 November 1546 between King Ferdinand of Bohemia and the Albertine Duke Maurice of Saxony, implementing the imperial ban against the Ernestine electors of Saxony. As High Chancellor of Bohemia, Henry participated on the side of Ferdinand and his brother, Emperor Charles V in the Battle of Mühlberg on 24 April 1547 and in the Capitulation of Wittenberg on