Roland Klein(b.1938) first worked at Christian Dior in 1960-1962. He then went to work for Karl Lagerfeld as an assistant at Patou. Klein went to London in 1965, where he worked at Marcel Fenez. In 1973 he was made the director of the house, and was given his own label. In 1979, Klein opened his own design business.
Marcel Fenez was a manufacturing business. In the late 1950s and early 1960s they also made the ready-to-wear line of Madame Carven.
Known for his understated chic, Klein designed clothes for Diana, Princess of Wales, throughout her time in the public eye, including one of her favourite outfits, frequently seen at polo matches and informal occasions from 1981 to 1987 – a trompe l’oeil jumper decorated with rhinestones.