Situated in the French department of Isère, the Grand Pic of Belledonne dominates the valley of Grésivaudan and partners the Pic Central of Belledonne and the Croix de Belledonne.
Ampelographers believe that Peloursin originated in the Isère department near Grenoble somewhere along the Vallée du Grésivaudan.
Alphonse Gourju (ironmaster from Rives), Renage, and Brignoud from the valley of Gresivaudan installed a remarkable puddling furnace at Bonpertuis which is well preserved today.
It has a characteristic "tooth-like" profile which is well-known sight of the Isère Valley (Grésivaudan) seen from the Grenoble area.
His ancestors were lords of the castle of Albon and counts (comites) in the Grésivaudan and Briançonnais.