Theologian · Patristic
St. Ambrose of Milan
c. 339–397 · Latin Nicene theology
Doctor of the Church; one of the four great Latin Doctors.
Roman governor acclaimed bishop of Milan while still a catechumen. He baptized Augustine, drove Arianism from Milan, made the Emperor Theodosius do public penance for the massacre at Thessalonica (“the emperor is within the Church, not above it”), wrote the first Latin treatise on clerical ethics modeled on Cicero, introduced Eastern hymnody and allegorical exegesis to the West, and taught the real presence with unmatched clarity.
Why he matters: He set the pattern for the Church's independence from the state, for Latin sacramental and Marian theology, and for the hymn-singing liturgy; the Ambrosian rite of Milan preserves his name.
Documented positions
Where this thinker stands on each dispute the test covers.