Constantine Photiadès (1882/1883-1949), son of Stefanos, was a scholar, an historian and an art critic. He was educated in France and studied Classics in Paris. He collaborated, as a critic, with the journals Revue de Paris, Revue hebdomadaire, Revue de deux mondes etc. He authored historical studies, biographies of historical figures etc. and was decorated by the Académie Française (1911, 1924, 1933). He was married to Irene von Strautz.