John of Gaunt of Castile. As his father and elder brother, Edward, the Black Prince, became incapacitated due to poor health, Gaunt assumed control of many government functions, and rose to become one of the most powerful political figures in England. He was faced with military difficulties abroad and political divisions at home, and disagreements as to how to deal with these crises led to tensions between Gaunt, the English Parliament, and the ruling class, making him an extremely unpopular figure for a time. John exercised great influence over the English throne during the minority of King Richard II, and the ensuing periods
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