Metropolitan Hilarion (Alfeyev), Head of the Church Foreign Office of the Moscow Patriarchate and Rector of the Aspirantura/Doctorantura at the Patriarchate, is a private lecturer at the Faculty of Theology in Fribourg. He habilitated at the Faculty in 2005 with a research on "Le mystère sacré de l'Église. Introduction à l'histoire et à la problématique des débats athonites sur la vénération du nom de Dieu" (= SOF 47, Fribourg 2007). Several works by Metropolitan Hilarion are published in the collection "Studia oecumenica friburgensia" (SOF).