Career
Chassang was first taught aikido by Tadashi Abe in 1952. When Abe returned to Japan in 1960, Chassang helped Masamichi Noro to create the Association Culturelle Européenne d"Aikido. He subsequently studied with Mutsuro Nakazono and Nobuyoshi Tamura, with whom he had a long and close alliance.
He was President of European Aikido Federation from 1981-1987.
With Philippe Voarino, he also founded the Takemusu Aiki Intercontinental association. Chassang died in April 2013, at the age of 94.