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
Ballymote Castle of the interior domestic buildings survive. Local folklore suggests that underground passages connected Emlaghfad church with the castle and with the nearby Franciscan Abbey, though such stories are common throughout Ireland and are unlikely to be based on fact. The Red Earl is also credited with building the ancient road from Boyle, County Roscommon to Collooney, known as "Bóthar an Corann" and as the "Red Earls Road". The castle changed hands many times since construction. It was captured by the O'Connors of Sligo in 1317, but was taken by the Mac Diarmada, during the course of local struggles, in 1347.