[1] She was a daughter of John Campbell, 3rd Earl of Breadalbane and Holland, and his first wife, Lady Amabel Grey.

Her maternal grandparents were Henry Grey, 1st Duke of Kent, and his first wife, the Hon.

Philip Yorke (later 2nd Earl of Hardwicke), and they had two daughters: On 5 June that year, she succeeded as Marchioness Grey by a special remainder upon the death of her maternal grandfather, the Duke of Kent, who held the title.

Media related to Jemima Yorke, 2nd Marchioness Grey at Wikimedia Commons

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