__ | _John FITZROBERT ____| | | | |__ | _Roger FITZJOHN _____| | | | | __ | | | | |_Ada DE BALIOL ______| | | | |__ | | |--Robert FITZROGER | | __ | | | _____________________| | | | | | |__ | | |_Isabel LNU _________| | | __ | | |_____________________| | |__