Born Oscar-Arthur Honegger (the first name was never used) to Swiss parents in Le Havre, France, he initially studied harmony and violin in Le Havre. After studying for two years at the Zurich Conservatory he enrolled in the Paris Conservatoire from 1911 to 1918, studying with both Charles-Marie Widor and Vincent d'Indy. He made his Paris compositional debut in 1916 and in 1918 wrote the ballet "Le dit des jeux du monde", generally considered to be his first characteristic work. In 1926 he married Andrée Vaurabourg, a pianist and fellow student at the Paris Conservatoire, on the condition that they live in separate apartments because he required solitude for composing. Andrée lived with her mother, and Honegger visited them for lunch every day. They lived apart for the duration of their marriage, with the exceptions of one year from 1935 to 1936 following Vaurabourg's injury in a car accident, and the last year of Honegger's life, when he was not well enough to live alone. They had one daughter, Pascale, born in 1932. Honegger also had a son, Jean-Claude (1926–2003), with the singer Claire Croiza.