Catherine Copley (died 1791) (1758–1791) Parents Mary Buller Sir Joseph Copley, 1st Baronet Children Lady Maria Hamilton Lord Claud Hamilton Catherine Hamilton Lady Harriet Hamilton James Hamilton, Viscount Hamilton Katherine Constantia Hamilton Siblings Anne Copley Sir Lionel Copley, 2nd Baronet Sir Joseph Copley, 3rd Bt. Maria Copley Juliana Copley Charlotte Copley Partners John Hamilton, 1st Marquess of Abercorn