Baptiste Beaupain is the adopted son of Hugo Duchamp and Ben Beaupain. Initially rescued from a dangerous school in Ireland, Baptiste relocates to Montgenoux where he takes over the running of the Beaupain vineyards.

Can be found in these stories:

L'ombre de l'île
L'assassiner de Sebastian Dubois
L’impondérable
Le Cri du Cœur
La Famille Lacroix
Les Mauvais Garçons
Prisonnier Dix
Le Bateau au fond de l'océan