Dubonnet was the son of Joseph Dubonnet, founder of the Dubonnet apéritif firm, from which he inherited substantial wealth.
They are an essential flavoring agent of most Italian amari, of the popular Campari aperitif, and of several brands of carbonated soft drinks that are generically called "chinotto".
Floc de Gascogne, a sweet apéritif made from a blend of grape juice and Armagnac
He was also well known for his advertising illustrations for Byrrh apéritif wine, Dufayel department stores, and the Casino of Paris.