William Ferrers

William de Ferrers (1240-1287) of Groby Castle in Leicestershire was the younger son of William de Ferrers, 5th Earl of Derby (c.1193-1254) of Chartley Castle in Staffordshire, by his second wife Margaret de Quincy, daughter and heiress of Roger de Quincy, 2nd Earl of Winchester (c.1195-1264). He founded the line of Ferrers of Groby, having been given Groby Castle by his mother Margaret de Quincy. Having rebelled against King Henry III, he was taken prisoner at the Battle of Northampton in 1264, but was later pardoned. In 1282 He was with King Edward I in the Army of Wales.