Catherine Decker Peerage person ID=692654 (d. 1786) Parents Sir Matthew Decker, 1st Baronet Children Richard FitzWilliam, 7th Viscount FitzWilliam John FitzWilliam, 8th Viscount FitzWilliam Siblings Mary Decker Croftes Henrietta Maria Decker Partners Richard FitzWilliam, 6th Viscount FitzWilliam
