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
Conan IV, Duke of Brittany Odo any aid. Within the year Conan IV was able to capture and imprison Odo and claim his inheritance. Conan also inherited the title Earl of Richmond from his father Alan, which made him subject to both the King of England and the King of France. Henry II of England, the Count of Anjou, attempted to obtain control of the Duchy of Brittany, which neighboured his lands and had traditionally been largely independent from the rest of France, with its own language and culture. The Breton dukes held little power across most of the duchy, which was mostly controlled by