Change the first filter to Author/Creator to find works by these theologians rather than books about them.
Suggested theologians for this time period include: Justin Martyr, Antony of Egypt, Ambrose, Athanasius, Basil the Great, Cyril of Jerusalem, Hilary of Poitiers, John Chrysostom, Jerome, Jacob of Sarug, Maximus the Confessor, Isaac of Nineveh, John of Damascus, Albert the Great, Francis of Assisi
Hundreds of classic Christian books available online.
Suggested theologians from this time period: Barnabas, Ambrose, Athanasius, Basil the Great, Ephrem the Syrian, Augustine, John Cassian, Dionysius the Areopagite, Benedict of Nursia, Boethius, the Venerable Bede, Anselm, Bernard of Clairvaux, Albert the Great, Bonaventura.
Searchable collection of classic texts in philosophy, literature, and the sciences.
Suggested theologians within this time period: Anselm, Augustine, Francis of Assisi
Includes works not in the Ante-Nicene, Nicene and Post-Nicene Fathers.
For This Time Period
Most primary sources available to you will be theological writings by particular persons of interest. Unpublished letters, manuscripts, etc. would be in non-English languages and may not be preserved in an accessible format.