Now on the south side of the ambulatory, we encounter the Chapelle Sainte-Anne which was established by Christophe de Penmarc'h between 1471 and 1505. De Penmarc'h arms can be seen in the keystone of the chapel's vaulting. The chapel contains a marble statue of Monseigneur Augustin David. David was the bishop at Saint-Brieuc for 20 years. He had a great interest in the arts and founded the local Societé d'émulation d'archéologie et d'histoire in 1861. His tomb was carved from white marble by Henri Chapu in 1891.