George Grey, 5th Earl of Stamford

George Harry Grey, 5th Earl of Stamford (1 October 1737 – 28 May 1819), styled Lord Grey from 1739 to 1768, was a British nobleman, who additionally became a peer of Great Britain as Earl of Warrington in 1796.

The eldest son and heir of Harry Grey, 4th Earl of Stamford by his wife Lady Mary, only daughter and heiress of George Booth, 2nd Earl of Warrington, baptised on 21 October at Newton Linford, Leicestershire. Educated at Leicester School he went up to Queens' College, Cambridge. where he matriculated in the Michaelmas term 1755, graduating MA in 1758.

Lord Grey served as Whig MP for Staffordshire from 1761 until 1768. On 22 September he was a Page of Honour at George III's coronation. Colonel of the Royal Chester Regiment of Militia from 1764, and Lord Lieutenant from 1783. He inherited large estates on her death from the former Mary Oldbury. The family had owned large tracts of land at Enville Hall, and his mother had died at Dunham Massey in 1772. He was created on 22 April 1796 the Baron Delamer of Dunham Massey, in the County of Chester, and Earl of Warrington.

On 28 May 1763, he married Lady Henrietta, second daughter of William Bentinck, 2nd Duke of Portland by Margaret Cavendish, only daughter and heiress of Robert, 2nd Earl of Oxford and Mortimer at Stamford House, Whitehall, and registry office, Westminster, having nine children including:

He succeeded to his father's earldom in 1768. His brother-in-law, William Cavendish-Bentinck, 3rd Duke of Portland, while Prime Minister, suggested that Stamford should also become a peer of Great Britain in addition to being an English peer. He accepted an earldom in 1796 from Portland's successor William Pitt the Younger, rather than the reported previous offer of a marquessate; in the absence of there being another dukedom in keeping with Grey family tradition (cf Henry Grey, 1st Duke of Suffolk), Stamford deemed it better to preserve the memory of his grandmaternal family whose estates he had inherited. Thus he received the additional titles of Baron Delamer and Earl of Warrington (in the peerage of Great Britain) in recognition of the Booth family.

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