_Archambaud GRAILLY ____ | (1330 - 1412) _Gaston I FOIX-GRAILLY _| | (.... - 1541) | | |_Isabella of FOIX ______ | (1361 - 1428) _John FOIX __________| | (1410 - 1485) m 1446| | | ________________________ | | | | |_Marguerite of ALBRET __| | | | |________________________ | | |--Gaston II FOIX | (1448 - 1500) | ________________________ | | | _Thomas KERDESTON ______| | | (.... - 1446) | | | |________________________ | | |_Margaret KERDESTON _| m 1446 | | _Michael DE LA POLE ____ | | (1367 - 1415) |_Elizabeth of LA POLE __| | |_Katherine of STAFFORD _ (1376 - 1419)