Doctor of the Church

the Church has many saints that have been given the title doctor over the centuries (thirty six as of today) but the fourth, fifth, and sixth centuries have been blessed with the most illustrious. Four in the West and four in the East stand out. They are Saints Jerome, Ambrose, Augustine, and Pope Gregory in the West and Saints Athanasius, Gregory Nazianzen, John Chrysostom, and Basil in the East.https://catholicism.org/the-sword-revealeth-the-heart.html