 He commissioned the goldsmith Placide Poussielgue-Rusand to create the altar.Poussielgue-Rusand also worked on the altars in the Sacrė-Coeur, Sainte Anne and Saint Pierre chapels as well as the elaborate reliquary said to contain the arm of Saint Corentin.Poussielgue-Rusand's altar was in fact exhibited at the 1867 Exposition Universelle and was gifted to the town of Quimper by Napoleon III.