Katherine Willoughby (died 1688) (1665–1688) Parents Anne Carey William Willoughby, 6th Baron Willoughby of Parham Children Charles Cokayne, 4th Viscount Cullen Catherine Cokayne Siblings Frances Willoughby Anne Willoughby Charles Willoughby, 10th Baron Willoughby of Parham George Willoughby, 7th Baron Willoughby of Parham John Willoughby, 9th Baron Willoughby of Parham Partners Charles Cokayne, 3rd Viscount Cullen