Cecily Willoughby, Lady Willoughby Spouse of John Willoughby, 3rd Lord Willoughby (d. 1372) Parents Margaret de Norwich Robert d'Ufford, 1st Earl of Suffolk Children Robert Willoughby, 4th Baron Willoughby Siblings William de Ufford, 2nd Earl of Suffolk Margaret de Ufford, lady Ferrers Lady Catherine de Ufford Thomas de Ufford Walter d'Ufford Partners John Willoughby, 3rd Lord Willoughby