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. Source: Wikipedia (en)