Overview
Lady Caroline Lamb (née Ponsonby; 13 November 1785 – 25 January 1828) was an Anglo-Irish aristocrat and novelist, best known for Glenarvon, a Gothic novel. In 1812, she had an affair with Lord Byron, whom she described as "mad, bad, and dangerous to know". Her husband was the Honourable William Lamb, who after her death became 2nd Viscount Melbourne and British prime minister.
Family background
She was the only daughter of Frederick Ponsonby, 3rd Earl of Bessborough, an Anglo-Irish peer, and Henrietta, Countess of Bessborough. She was known as the Honourable Caroline Ponsonby until her father succeeded to the earldom in 1793. While her brother, Frederick Cavendish Ponsonby, was severely injured in the Battle of Waterloo, in the days after the battle she had an affair with the Duke of Wellington. She was related to other leading society ladies and was the niece of Georgiana Cavendish, Duchess of Devonshire, and cousin (by marriage) of Annabella, Lady Byron. She was related to Sarah Ponsonby, one half of the Ladies of Llangollen, and Diana, Princess of Wales.
She was never Viscountess Melbourne because she died before Melbourne succeeded to the peerage.
Youth and education
From Wikipedia (CC BY-SA 4.0).