Saint Laurent, Yves san law RAHN, eev (1936-...), became perhaps the most influential fashion designer of the late 1900's. In 1957, at the age of 21, Saint Laurent was appointed head designer of the famous Dior fashion house in Paris. Saint Laurent's designs are noted for their superb sense of line, rich color, and exceptional craftsmanship. He has made innovations in his adaptation of the comfort, wearability, and lively spirit of everyday fashion to haute couture (high fashion).