Thomas Herbert, 8th Earl of Pembroke English diplomat and politician (1656–1733) (1656–1733) Parents Catherine Villiers Philip Herbert, 5th Earl of Pembroke Children Henry Herbert, 9th Earl of Pembroke Nicholas Herbert Catherine Herbert Lady Barbara Herbert Robert Sawyer Herbert William Herbert Lady Rebecca Herbert Siblings Philip Herbert, 7th Earl of Pembroke William Herbert, 6th Earl of Pembroke Lady Mary Herbert Lady Catherine Herbert Lady Susan Herbert Partners Barbara Herbert, Countess of Pembroke Mary Howe Margaret Sawyer