From 'A Supplement to the four volumes of the Peerage of England by Arthur Collins'

Sir William Fitz-Wiliam lived in the Reign of King Henry the Vth; to him Henry Bewett, Archbihop of York, did Homage. He married Eleanor, Daughter of Sir Henry Green of Drayton, and had issue....another John, who was of Milton and Green's Norton, and married Ellen, Daoughter of William Villers of Brooksby in Com. Leicester, Efq; from whom the Earl Fitz-William is descended.