Maurice de Berkeley 1243 and, on 14 December 1243, he had livery of his father's lands. He fought in the war in North Wales and in 1264 he joined the Barons against King Henry III. Berkeley died on 4 April 1281 and was buried in St Augustine's Abbey in Bristol. Maurice de Berkeley Sir Maurice de Berkeley "the Resolute" (1218 - 4 April 1281), 5th (feudal) Baron de Berkeley, was an English soldier and rebel, residing at Berkeley Castle in the English county of Gloucestershire. Maurice was born in 1218 to Thomas de Berkeley and Joan de Somery. He married Isabel FitzRoy, the
Edward II of England move was highly unpopular. Isabella and Mortimer both amassed, and spent, great wealth, and criticism of them mounted. Relations between Mortimer and the young Edward III became strained and in 1330 the King conducted a "coup d'état" at Nottingham Castle. He arrested Mortimer and then executed him on fourteen charges of treason, including the murder of Edward II. Edward III's government sought to blame Mortimer for all of the recent problems, effectively politically rehabilitating the late King. The King spared Isabella, giving her a generous allowance, and she soon returned to public life. Edward's body was embalmed at Berkeley Castle,