Lady Harriet Bentinck (1705-1792) (1705–1792) Parents William Bentinck, 1st Earl of Portland Jane Martha Temple Children James Hamilton, 2nd Earl of Clanbrassil Lady Anne Hamilton Siblings Lady Sophia Bentinck Lady Elizabeth Adriana Bentinck Lady Barbara Bentinck Willem Bentinck Lady Anna Margaretha Bentinck Lady Frances Bentinck Isabella Bentinck Charles John Bentinck Willem Bentinck Henry Bentinck, 1st Duke of Portland Mary Capel, Countess of Essex Partners James Hamilton, 1st Earl of Clanbrassil