Le Corbusier pioneered European modernism in architecture and laid the foundation for what became the Bauhaus Movement in Germany and the International Style in the US. He was born Charles-Edouard Jeanneret-Gris but adopted his mother's maiden name, Le Corbusier, in 1922 when he set up a partnership with his cousin, engineer Pierre Jeanneret. His writings and theories helped define a new modernism in materials and design.