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Male William  de Ros, 1st Lord de Ros Click to view William  de Ros, 1st Lord de Ros in the family tree Click to view William  de Ros, 1st Lord de Ros in the family tree

William  was born about 1255.  William 's father was Sir Robert de Ros and his mother was Isabel d'Aubigny.  His paternal grandparents were Sir William de Ros and Lucy Fitzpiers; his maternal grandparents were William d'Aubigny, 3rd Earl of Arundel and Mabel of Chester. He had a half-brother named John.  He died in 1316.


Family Details of William 's family with Matilda de Vaux