About Olivia Charlotte Guinness, Baroness Ardilaun
Olivia Charlotte Guinness, Baroness Ardilaun (27 August 1850 – 13 December 1925), best known as Lady Ardilaun, a remote descendant of the McCarthy chiefs, 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, the St Anne's Estate in Dublin, and Ashford Castle.