At the age of 18, he went to study painting in Spain at the Royal Academy of San Fernando in Madrid. For extra money, he drew clothes for newspapers and fashion houses. After Francesca Lodge, the wife of John Davis Lodge, the U.S. Ambassador to Spain, saw some of his dress sketches, she commissioned de la Renta to design a gown for her daughter. The dress appeared on the cover of "Life" magazine that fall. He quickly became interested in the world of fashion design and began sketching for leading Spanish fashion houses, which soon led to an apprenticeship with Spain's most renowned couturier, Cristóbal Balenciaga. He considered Cristóbal Balenciaga his mentor. In 1961, de la Renta left Spain to join Antonio del Castillo as a couture assistant at Lanvin in Paris.