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
Berkeley Castle from the Minstrels' gallery. His tomb is in St Mary's churchyard which stands besides the castle. Adjoining the Great Hall was the Chapel of St Mary (now the morning room) with its painted wooden vaulted ceilings and a biblical passage, written in Norman French. In the late 16th century Queen Elizabeth I visited the castle and played bowls on the bowling green. During the English Civil War, the castle still held sufficient significance for it to be captured in 1645 by Colonel Thomas Rainsborough, for the Parliamentarian side and after a siege which saw cannon being fired at point blank