 In a niche in one of the buttresses there is a statue of Catherine of Alexandria carved from kersanton.Above the door is a triangular pediment with three ėcussons ("crests or shields") including the crest of the Duchess Jeanne de France surmounted by the "hermine passante" ("passing stoat"), the emblem of Brittany, with the inscription ""A ma vie"".Also shown are the arms and mottos of Monseigneur de Rosmadec and Guillaume de Rosmadec.