Original: Bernini created a large bronze throne in which it was housed , raised high on four looping supports held effortlessly by massive bronze statues of four Doctors of the Church , Saints Ambrose and Augustine representing the Latin Church and Athanasius and John Chrysostum the Greek Church .
Simplified: They are Saints Ambrose and Augustine for the Church of Rome and Saints Athanasius and John Chrysostum for the Orthodox Church .