High Quality Content by WIKIPEDIA articles! Mary Irene Curzon, 2nd Baroness Ravensdale CBE (20 January, 1896 9 February, 1966) was the eldest child of George Nathaniel Curzon, 1st Marquess Curzon of Kedleston and Mary Victoria Leiter, a daughter of Levi Zeigler Leiter. She inherited her father's Barony of Ravensdale and was created a life peer as Baroness Ravensdale of Kedleston, in Derbyshire in 1958 - this allowed her to sit in the House of Lords prior to the passing of the Peerage Act 1963, which allowed suo jure hereditary peeresses to enter.