The bishops of Cahors owned the Lot valley from Cahors to Puy-l'Évêque, and Grézels marked one of the outer limits of their fief. They built this castle in the 12C to defend the entrance to their territory. Transformed into a fortified castle during the Hundred Years War by the Guiscards and restored in the 14C and 16C, it fell into disuse after the Revolution. Small wine museum in the cellars.