The four major cycles of Romanesque paintings in the abbey church of Saint-Savin (France) - those of the porch, the tribune, the nave and the crypt - are herein invoked historically, iconographically but most especially in terms of their execution or proper conservation. This commentary is the result of an interdisciplinary effort. It was elaborated both prior to treatment of the works themselves and in the course of their restoration. The crypt, which has just been fully restored, receives particular attention. -- ICCROM