Marinus GrenprÃ© MoliÃ¨re studied at the Technical University of Delft and collaborated with [Jos Klijnen]. They had great influence on Dutch urban building and both belonged to the Rotterdam functionalists. GrandprÃ© MoliÃ¨re is generally regarded as a pioneer of the Organic City and a representative of the Rotterdam avant-garde in the 1920s. He was the founder of the Delftse School. In 1916 he installed an architectural office together with [Pieter Verhagen]. This office quickly grew to become the leading urban planning office.