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
Berkhamsted Castle the growing wool trade. Richard died at the castle in 1272, and it passed to his son Edmund. The castle passed on through Edward I, who found the castle in an apparently poor condition, and his second wife, Margaret, to Edward II. Edward II gave it to his royal favourite, Piers Gaveston, whom he made Earl of Cornwall. Gaveston was married there in 1307, with Edward in attendance. Edward II and Gaveston fell from power in 1327 and John, Edward's second son, took possession as the new Earl of Cornwall. When John died, Edward III reclaimed Berkhamsted Castle; a survey