Mary Irene Curzon, 2nd Baroness Ravensdale (1896–1966) was the eldest daughter of George Lord Curzon, Viceroy of India, and the heiress Mary Leiter. She inherited her father's Barony of Ravensdale and also was created a life peer in 1958 for her charitable work. After the sudden death of her sister Lady Cynthia Mosley, she raised her 3 children.
