Cecily married 1st Marquess of Dorset Thomas Grey on 18 Jul 1474 in Ratby, Leicestershire, England. Thomas (son of Lord Ferrers of Groby of Bradgate Hall Sir John Grey and Queen Consort of England Elizabeth Woodville) was born in 1455 in Groby, Leicestershire, England; died on 20 Sep 1501 in Astley, Warwickshire, England. [Group Sheet] [Family Chart]