Henry IV, also known as Henry Bolingbroke, was King of England from 1399 to 1413, Lord of Ireland and duke of Aquitaine. Henry was the son of John of Gaunt, Duke of Lancaster, and a grandson of King Edward III. Born: April 1367 Died: March 29, 1413 In office: October 8, 1399 – March 29, 1413 Wiki link