Sir Thomas FitzWilliam Peerage person ID=1015 (1448–1495) Parents Sir Richard FitzWilliam Elizabeth Clarell, of Aldwark Children Thomas FitzWilliam John FitzWilliam Margaret FitzWilliam, of Aldwark William FitzWilliam, 1st Earl of Southampton Siblings Margaret FitzWilliam, of Aldwark Catherine FitzWilliam Isabel FitzWilliam, of Aldwark Partners Lady Lucy Neville