James Berkeley James Berkeley James Berkeley (died 1327) was Bishop of Exeter for a period of three months in 1327, which term was cut short by his death or possible murder. Berkeley was a younger son of Thomas de Berkeley, 1st Baron Berkeley (1245-1321), "The Wise", feudal baron of Berkeley of Berkeley Castle in Gloucestershire, by his wife Joan de Ferrers, a daughter of William de Ferrers, 5th Earl of Derby by his wife Margaret de Quincy, a daughter of Roger de Quincy, 2nd Earl of Winchester. Berkeley was elected bishop on 5 December 1326 and was consecrated on 22 March 1327.
Nottingham Castle were acting as Regents during Edward's minority following their murder of his father Edward II at Berkeley Castle. William Montagu and his companions, were accompanied by William Eland, castellan and overseer of Mortimer's castle, who knew the location of a secret tunnel which would take them up to a locked door higher up in the castle to a normally locked door. In the dark of night on 19 October 1330, Montagu and his companions entered the tunnel, climbed up to the door, which had now been unlocked either by Edward III or a trusted servant, overpowered Mortimer, killing Mortimer's personal