Family: Sir Roger, 3rd Baron, de la Warre (maid. name Lord la Warr) / Lady Joan De Mowbray, Baroness Grey of Heaton

Paternal line Sir Roger, 3rd Baron, de la Warre (maid. name Lord la Warr)
Sir John, 3rd Baron, de la Warre Abt 1300 - 1331  (~ 31 years)	_	Lady Margaretha de Holand, (maid. name Baroness de la Ware) Abt 1308 - 1349  (~ 41 years)

Paternal line Lady Joan De Mowbray, Baroness Grey of Heaton
John ( 4rh baron Mowbray of theisk) de Mowbray 1340 - 1368  (28 years)	_	Duchess Elizabeth Segrave 1338 - 1398  (59 years)