Morg(r)und Mac Gylocher, 2nd Earl of Mar; witness by 1152 to a charter of David I and his son Henry to Dunfermline, also a confirmatory charter to the same foundation by David's successor Malcolm IV in the mid 1150's; married Agnes and died by 30 March 1183, leaving possibly five or six sons (Malcolm; James; Duncan; David/Donald (possibly the same person); John); one of his sons may have been the man who was his undoubted successor as Earl. [Burke's Peerage]