Dorothy Grey (1480-1552) (1480–1552) Parents Cecily Bonville, 7th Baroness Harington Thomas Grey, 1st Marquess of Dorset Children Anne Willoughby Mary Blount John Blount Dorothy Blount Elizabeth Willoughby Siblings Lord John Grey Lord Edward Grey Bridget Grey George Grey Sir Richard Grey Cicely Grey Lady Margaret Grey Anthony Grey Thomas Grey, 2nd Marquess of Dorset Leonard Grey, 1st Viscount Grane Elizabeth Grey, Countess of Kildare Lady Mary Grey Eleanor Grey Partners Robert Willoughby, 2nd Baron Willoughby de Broke William Blount, 4th Baron Mountjoy