In the Wars of the Roses which began in 1455 both sides made considerable use of Welsh troops. The main figures in Wales were the two Earls of Pembroke, the Yorkist Earl William Herbert and the Lancastrian Jasper Tudor. In 1485 Jasper's nephew, Henry Tudor, landed in Wales with a small force to launch his bid for the throne of England. Henry was of Welsh descent, counting princes such as Rhys ap Gruffydd (The Lord Rhys) among his ancestors, and his cause gained much support in Wales. Henry defeated King Richard III of England at the Battle of Bosworth with an army containing many Welsh soldiers and gained the throne as King Henry VII of England.