Olivia Charlotte Guinness, Baroness Ardilaun, best known as Lady Ardilaun was, after the British monarch, the richest woman of her time in Britain and Ireland. A daughter of the Earl of Bantry, she was connected to Muckross House, Macroom Castle, Bantry House, the St Anne's Estate in Dublin, and Ashford Castle.
- Citizenship
- United Kingdom of Great Britain and Ireland
- Born
- August 27, 1850
- Died
- December 13, 1925