James married Isabel Mowbray in 1423/1424 in Berkeley Castle, BERKELEY, Gloucestershire, England. Isabel (daughter of Thomas De Mowbray, [DUKE OF NORFOLK and Elizabeth Fitzalan, [DUCHESS OF NORF) was born about 1396 in Of, Bristol, Gloucestershire, England; died on 29 Sep 1452 in Berkeley Castle, BERKELEY, Gloucestershire, England; was buried in Greyfriars, GLOUCESTER, Gloucestershire, England. [Group Sheet] [Family Chart]