Katharine Sophia Herbert (died 1780) (1705–1780) Parents John Sheffield, 1st Duke of Buckingham and Normanby Frances Stewart Children Charlotte Cox Catherine Sophia Cox Edmund Hunt Thomas Cox Siblings Sir Charles Sheffield, 1st Baronet Mary Sheffield Edmund Sheffield, 2nd Duke of Buckingham and Normanby John Sheffield, Marquess of Normanby Robert Sheffield Charlotte Herbert Sophia Lambart Partners Joseph Cox Joseph Hunt Charles Cole