John of Gaunt John of Gaunt John of Gaunt, Duke of Lancaster (6 March 13403 February 1399) was an English prince, military leader, and statesman. He was the third of the five sons of King Edward III of England who survived to adulthood. Due to his royal origin, advantageous marriages, and some generous land grants, Gaunt was one of the richest men of his era, and an influential figure during the reigns of both his father, Edward, and his nephew, Richard II. As Duke of Lancaster, he is the founder of the royal House of Lancaster, whose members would ascend to the throne
John, King of England to the throne of England. The uncertainty about what would happen after Henry's death continued to grow; Richard was keen to join a new crusade and remained concerned that whilst he was away Henry would appoint John his formal successor. Richard began discussions about a potential alliance with Philip II in Paris during 1187, and the next year Richard gave homage to Philip in exchange for support for a war against Henry. Richard and Philip fought a joint campaign against Henry, and by the summer of 1189 the king made peace, promising Richard the succession. John initially remained loyal to