Anne Cecil, Countess of Northumberland British noble (1612-1637), 1st wife of Algernon Percy (1612–1637) Parents Catherine Cecil William Cecil, 2nd Earl of Salisbury Children Lady Dorothy Percy Lady Catharine Percy Elizabeth Capell, Countess of Essex Lady Anne Percy Lady Lucy Percy Siblings Elizabeth Cecil, Countess of Devonshire Lady Catherine Cecil Lady Mary Cecil Lady Diana Cecil Algernon Cecil Charles Cecil, Viscount Cranborne Edward Cecil Robert Cecil William Cecil James Cecil, Viscount Cranborne Philip Cecil Partners Algernon Percy, 10th Earl of Northumberland