"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. She had an affair with Lord Byron in 1812, for whom she coined the phrase "mad, bad, and dangerous to know". Her husband was The Hon. William Lamb, who after her death became Prime Minister." - (en.wikipedia.org 04.10.2020)
en