Oleg CASSINI was an American fashion designer, born Oleg Aleksandrovich LOIEWSKI on April 11, 1913 in Paris, the elder son of Countess Marguerite CASSINI and her husband Count Alexander LOIEWSKI, a Russian diplomat, thereby obtaining the title of Count. His maternal grandfather Arthur Paul Nicholas CASSINI, Marquis de Capuzzuchi di Bologna, Count CASSINI, had been the Russian ambassador to the United States during the administrations of William MCKINLEY and Theodore ROOSEVELT. Raised in Italy, he studied at a British Catholic school before entering the Academy of Fine Arts. He began his career in clothing in 1933 in his mother's shop, before standing on his own feet by opening his own store in Rome the same year, under the name of his mother, née CASSINI. In 1936, he moved to New York, and designed clothes for luxury department stores. In 1940, he left to work in Hollywood for the studios of 20th Century Fox. There he met Gene TIERNEY whom he married and with whom he had two daughters, Daria and Tina, and made the costumes for seven of his films. They divorced in 1952, but he continued to work for Hollywood until 1960. In 1960, he became the official couturier of Jacqueline KENNEDY. He created more than 300 dresses for her, making the First Lady one of the most elegant women in Washington; he sometimes does not hesitate to officially or unofficially copy the models of French houses such as Dior. He also dressed many Hollywood stars, including Grace KELLY and Marilyn MONROE, with whom he had a relationship as well as Gene TIERNEY who was his wife. Robin SMITH was also later married in one of her shiny dresses.