William Willoughby, 6th Baron Willoughby of Parham English politician (1616–1673) Parents Lady Frances Manners William Willoughby, 3rd Baron Willoughby of Parham Children Anne Willoughby George Willoughby, 7th Baron Willoughby of Parham Katherine Willoughby Frances Willoughby Charles Willoughby, 10th Baron Willoughby of Parham John Willoughby, 9th Baron Willoughby of Parham Siblings Henry Willoughby, 4th Baron Willoughby of Parham Francis Willoughby, 5th Baron Willoughby of Parham Frances Willoughby Partners Anne Cary