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
Berwick Castle Scots, to help fund the Third Crusade. The castle finally fell into English hands in the last week of August 1482. After invading Scotland following a pact with the Duke of Albany, Richard, Duke of Gloucester captured the castle from Patrick Hepburn, Lord Hailes. The construction of modern ramparts around Berwick in the sixteenth century rendered the castle obsolete and its later history is one of steady decline. Large parts of the structure were simply used as a quarry (notably for the construction during the Commonwealth of the parish church, Holy Trinity), while in the nineteenth century, the great hall