Portrait by Giovanni Boldini
European-raised American heiress Gladys Deacon was one of the great beauties of her time. She was celebrated in Paris and won many proposals. She wed the 9th Duke of Marlborough and settled into British life. As a child, Gladys' father shot and killed her mother's lover in a hotel in Cannes that caused an international scandal. Her father later died in a psychiatric prison. Later, Gladys' problems led her to seek care at a psychiatric hospital, where she spent the last years of her life.