Lady Catherine Cecil (1628-1652) (1628–1652) Parents William Cecil, 2nd Earl of Salisbury Catherine Cecil Children Robert Sidney, 4th Earl of Leicester Siblings Anne Cecil, Countess of Northumberland Elizabeth Cecil, Countess of Devonshire Lady Diana Cecil Algernon Cecil Lady Mary Cecil Charles Cecil, Viscount Cranborne Edward Cecil Robert Cecil James Cecil, Viscount Cranborne William Cecil Philip Cecil Partners Philip Sidney, 3rd Earl of Leicester