Henry IV of house of lancaster.
John of Gaunt's son Henry? Henry Bolingbroke (also known as Henry of Bolingbroke, because he was born in Bolingbroke Castle in Lincolnshire) took part in the public office of the British government when he was young, and was famous for taking part in the Crusades against Lithuania. Because he made great contributions in the political struggle against the Duke of Gloucester, he was named Duke of Helford. But in 1398, he was forced into exile because of a dispute with the Duke of Norfolk. 1399, after John of Gaunt died, Henry? Paulingbrook's territory was confiscated. That same year, Henry? Paulingbrook returned to China to launch a rebellion and ousted his cousin Richard II from the throne to become king of England. History called him Henry IV, which opened the kingdom of England? In Lancaster Dynasty, Henry IV became king because of rebellion, and Richard II died suddenly shortly after he was forced to abdicate. Many nobles were hostile to Henry IV, especially the opposition from the York family (John of Gaunt's brother, the descendant of Edmund, Duke of York), thus sowing the seeds of the English Civil War-wars of the roses. Soon after, Henry IV died under the pressure of domestic and foreign affairs, and his son Henry V succeeded to the throne.