Mary Robinson, Baroness Grantham

Mary Jemima Robinson, Baroness Grantham (9 February 1757–7 January 1830, Whitehall, London) was a British peeress.

Born Lady Mary Jemima Yorke, she was the second daughter of Jemima Yorke, 2nd Marchioness Grey and Philip Yorke, 2nd Earl of Hardwicke and was educated privately at the family home, Wrest Park. On 17 August 1780, she married Thomas Robinson, 2nd Baron Grantham at her parents' home in St James's Square and they had two surviving sons:

• Hon. Thomas Philip, later 2nd Earl de Grey (1781–1859)
• Frederick John, later 1st Viscount Goderich, later still 1st Earl of Ripon (1782–1859)

Source

• Collett-White, James - Yorke, née Campbell, Jemima, suo jure Marchioness Grey (1722–1797), letter writer - Oxford Dictionary of National Biography