At work in his laboratory of the Fontaines Parfumées in Grasse, Jacques Cavallier Belletrud never shies away from the visionary and demanding gaze of Louis Vuitton (1821-1892), the briefcase-leather maker who founded the eponymous brand in 1854. Named the most valuable luxury brand in the world from 2006 to 2012, the famous monogrammed brand was ranked 14th in Forbes magazine's list of the world's most influential brands in 2015.