Lady Diana Beauclerk

Lady Diana Beauclerk (née Lady Diana Spencer; other married name Diana St John, Viscountess Bolingbroke) (27 March 1734–1 August 1808) was an English noblewoman and artist.

She was the daughter of the Honourable Elizabeth Trevor (d. 1761) and Charles Spencer, 3rd Duke of Marlborough (1706–1758). Her siblings were George, Charles, and Elizabeth. She was raised at Langley Park, Buckinghamshire, where she was introduced to art at an early age. Joshua Reynolds, an artist, was a family friend.

She married Frederick St John, 2nd Viscount Bolingbroke (1734–1787) in 1757, and from 1762–1768 was Lady of the Bedchamber to Queen Charlotte. She became widely known as 'Lady Di' (as did her namesake in the early 1980s).

Her marriage was unhappy and Bolingbroke was notoriously unfaithful. In February 1768 he petitioned for divorce on grounds of adultery. The petition required an act of parliament, which was passed the next month. Within two days she married Topham Beauclerk of Old Windsor. They had four children:

Their circle of friends included Samuel Johnson, Georgiana Cavendish — who maintained a glittering salon — Edward Gibbon, David Garrick, Charles Fox, James Boswell and Edmund Burke.

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