From among the Neoplatonist philosophers, Proclus (412-485), the Athenian Diadochus of Plato exerted the greatest influence on Christian, Muslim and Jewish philosophy. While Proclus’ works were used and “baptized” by Pseudo-Dionysius the Areopagite (late 5th c.), they were also transmitted by a Christian translator to the Arab world and inspired the development of Arabic philosophy, from where they reached, via Spain, the Latin West. Proclus also influenced the Jewish philosopher Ibn Gabirol (1021/2-1057/8) and became very popular in the 11th century in Byzantium, in the schools of Psellus and John Italus. In the twelfth century, Ioanne Petritsi in Georgia created an original Christian metaphysical system on the basis of Proclus’ works, translated the Elements of Theology into Georgian, and his work was transmitted to Armenia, too. Proclus also became a main inspiration in Renaissance for Nicholas of Cusa, Marsilio Ficino and Pico della Mirandola. The present course offers to trace this history and follow the transformations of Proclus' metaphysics in the three monotheist religions up to modernity. The class will contain six modules treating Proclus’ philosophy and its reception history. Each module will consist of a general introduction to the subject, with secondary literature to be read by the students, and a reading seminar when original philosophical texts will be read in English translation and will be commented during the class.