The house of Saint Laurent was founded by Yves Saint Laurent and Pierre Bergé in the 30 bis, rue Spontini, Paris. Its iconic logo, which weaves together the initials "YSL", was designed by the graphic artist French Adolphe Jean-Marie Mouron, known as Cassandras. This original form is still used as part of the iconography of the house today. Since its foundation in 1961, Saint Laurent has been a icon of fashion and luxury at the global level.