Maurice de Berkeley 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 daughter of Richard FitzRoy, Baron of Chilham (an illegitimate son of King John of England) and Rose de Douvres, sometime before 12 July 1247. Berkeley fought in the French Wars and was invested as a knight before 1242. He inherited the title of Baron de Berkeley in
Joan de Geneville, 2nd Baroness Geneville worse privations having been locked up inside various religious houses with even less money at their disposal. Joan was transferred from Skipton to Pontefract Castle in July 1326. Mortimer and Isabella landed in England two months later in September 1326, and they joined forces with Henry, 3rd Earl of Lancaster. On 16 November, King Edward was taken prisoner and eventually murdered at Berkeley Castle, presumably by Mortimer's hired assassins. From 1327 to 1330, Mortimer and Isabella jointly held the Office of Regent for her son, King Edward III who was duly crowned following his father's death. Mortimer was made constable