Fitzmaurice (née O'Brien), Mary
Notes: Lady Mary O'Brien, daughter of Murrough, 5th Earl of Inchiquin [I], by Mary, s.j. Countess of Orkney. In 1777 she became the wife of Thomas Fitzmaurice of Lleweni, Denbighshire. She inherited her mother's title and her estate of Cliveden in 1790, and the couple settled in Buckinghamshire thereafter. Hist P.