Noun
the fourth son of Edward III who was the effective ruler of England during the close of his father's reign and during the minority of Richard II; his son was Henry Bolingbroke (1340-1399)
Source: WordNetAll subsequent kings of Portugal were thus descended from John of Gaunt. Source: Internet
Duke Henry's daughter Blanche of Lancaster married John of Gaunt and their son Henry Bolingbroke became King Henry IV when he deposed King Richard II. Source: Internet
During his marriage to Constance, John of Gaunt fathered four children by a mistress, the widow Katherine Swynford (whose sister Philippa de Roet was married to Chaucer ). Source: Internet
Furthermore, John of Gaunt returned to England in 1389 and settled his differences with the king, after which the old statesman acted as a moderating influence on English politics. Source: Internet
Harriss (2005), p. 482. On 3 February 1399, John of Gaunt died. Source: Internet
He possibly served as a squire to Henry Bolingbroke (later Henry IV of England ), son of John of Gaunt, at the short, sharp Battle of Radcot Bridge in December 1387. Source: Internet