BLUMENKRANZ, BERNHARD (1913–1989), historian. Blumenkranz headed a research unit at the National Center for Scientific Research (Paris), and lectured on the social history of the Jews at the École Pratique des Hautes Études in Paris. He was president of the French Commission of Jewish Archives, and director of the bimonthly publication of the Jewish Archives. His works deal principally with the Jewish and Christian relations in the Middle Ages and the history of the Jews in medieval France. Among his books are Juifs et Chrétiens dans le monde occidental (1960), Les auteurs chrétiens latins du Moyen-Age sur les Juifs et le judaïsme (1963), and Le Juif médiéval au miroir de l'art chrétien (1966). Blumenkranz was a departmental editor of the Encyclopaedia Judaica (first edition) for the Church and the Jews and the history of the Jews in Medieval France.