The church of Notre-Dame de Toute Grâce du Plateau d'Assy (Our Lady Full of Grace of the Plateau d'Assy) is a Roman Catholic church in France, constructed on the plateau d'Assy between 1937 and 1946. It faces Mont Blanc, and is within the territory of the commune of Passy, in the Haute-Savoie department. Constructed at the urging of canon Jean Devémy and designed by the Savoyard architect Maurice Novarina, the church is celebrated for its decoration, contributed by some of the best-known artists of the twentieth century. It is also viewed as an important landmark in the development of modern sacred art; its consecration in 1950 caused much consternation within the ranks of the clergy of France, who had hitherto been accustomed to more traditionally classical structures.