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
Richard I of England French King. He organised an alliance against Philip, including Baldwin IX of Flanders, Renaud, Count of Boulogne, and his father-in-law King Sancho VI of Navarre, who raided Philip's lands from the south. Most importantly, he managed to secure the Welf inheritance in Saxony for his nephew, Henry the Lion's son Otto of Poitou, who was elected Otto IV of Germany in 1198. Partly as a result of these and other intrigues, Richard won several victories over Philip. At in 1194, just after Richard's return to France from captivity and money-raising in England, Philip fled, leaving his entire archive of financial