Rob (Robert Louis) du Bois was born in Amsterdam. His French ancestry can be seen from his name, and he maintained a sympathy for the French mentality and language. After graduating from the Vossius Gymnasium in Amsterdam he studied law at the Gemeentelijke Universiteit in the same city. He began studying music with Chris Rabé at the Volksmuziekschool, later taking piano lessons, initially with Hans Sachs, and later with T. Hart Nibbrig–de Graeff. He decided to become a composer after hearing two symphonies by Matthijs Vermeulen in 1949. As a composer he was self-taught, with influences especially from his contact during the 1950s with the composers Kees van Baaren and Daniel Ruyneman.
