Born on 4th October 1903 (he died in 1990), the son of a distinguished professional Swiss family in St Gallen, in Switzerland, Medard Boss became a student of medicine primarily in Zurich. There he was subsequently, in 1939, given the title of professor, but that was long after also studying in Paris, London, and Vienna. In Vienna, he had a training analysis with Sigmund Freud. Later in Zurich, for nearly a decade, there were monthly conversations with Carl Gustav Jung.