Catherine Willoughby (1470-1542) (1470–1542) Parents Christopher Willoughby, 10th Baron Willoughby de Eresby Children Sir Christopher Heydon Thomas Heydon Margaret Heydon Siblings William Willoughby, 11th Baron Willoughby de Eresby Sir Thomas Willoughby Sir Christopher Willoughby Elizabeth Willoughby Partners Sir John Heydon