Three Letters | Bulgaranus Comes (7th century)

Altercatio Monachi et Clerici | Rupert of Deutz (12th Century Latin)

Three Sermons on the Nativity | Hildebert of Lavardin | 12th Century

Ethics or The Book Called Know Thyself | Peter Abelard (12th century)

Bibliothecarius Modernus: A Primer

Dialogue Between God and the Sinner | Pope Innocent III (c. 1190s-1210s)

The Plaint of Nature | Alain de Lille (12th century)

On the Eight Vices | Saint Eutropius of Valencia (6th century)

On the Veneration of Images - Book 3 | Jonas of Orléans (9th century)

On the Veneration of Images - Book 2 | Jonas of Orléans (9th century)

On the Veneration of Images - Book 1 | Jonas of Orléans (9th century)

Treatise on Finding the Thickness of a Sphere | Adelbold of Utrecht (c. 1000 AD)

Vita Annonis Minor | Anonymous

Conflicts on the Trinity Book Two | Arnobius the Younger

Conflicts on the Trinity Book One | Arnobius the Younger

Explanation of the Creed | Nicetas of Remesiana

On the Nature of Faith | Nicetas of Remesiana

Sermons on Various Subjects | Martin of León

On the Power of the Holy Spirit | Nicetas of Remesiana

Book on the Blessings of Jacob the Patriarch | Gottfried of Admont

The Life of Mary Magdalene and Martha | Rabanus Maurus

Sermons on the Saints | Martin of León

Exorcismus | Pseudo-Ambrose of Milan

Letter to Childerbert | Leo of Sens

On the Glorification of the Trinity Book Nine | Rupert of Deutz

Response Concerning the Salvation of the First Man | Philip of Harveng

On the Glorification of the Trinity Book Eight | Rupert of Deutz

On the Famous Writers of His Monastery | Renier of St Laurent

On the Dream of Nebuchadnezzar | Philip of Harveng

On the Glorification of the Trinity Book Seven | Rupert of Deutz

On the Advancement of Death | Renier of St. Laurent

Booklet against Maximus the Arian | Cerealis of Castellensis

On the Glorification of the Trinity Book Six | Rupert of Deutz

Book on the Virgin Conception | Anselm of Canterbury

A Response Concerning the Damnation of Solomon | Philip of Harveng

On the Glorification of the Trinity Book Five | Rupert of Deutz

On the Glorification of the Trinity Book Four | Rupert of Deutz

On the Glorification of the Trinity Book Three | Rupert of Deutz

On the Glorification of the Trinity Book Two | Rupert of Deutz

Minor Works of Saint Valerius the Abbot

Work on the Vigils of God's Servants | Nicetas of Remesiana

Book of Synods or Faith of the Easterners | Hilary of Poitiers

The Letters of Paul Winfrid the Deacon

On the Glorification of the Trinity Book One | Rupert of Deutz

The Letter of Aurelius of Carthage | Aurelius of Carthage

Sermon on the Vigil of Saint Benedict | Laurentius of Monte Cassino

Sentence Against Sacrilegious Thieves | Odalricus of Reims

The Life of Saint Odo Second Abbot of Cluny

Two unpublished sermons | Fulgentius of Ruspe

Book on the Three Dwellings | Reflections by Saint Patrick

Prologue to His Book on Miracles | John Italus of Cluny

On the Pelagian Heresy Growing in the Age of Leo the Great

On the Heresy and History of the Priscillianists | Leo the Great

On the Heresy and History of the Manicheans Book Two | Leo the Great

On the Heresy and History of the Manicheans Book One | Leo the Great

On the Heresy and History of the Eutychians Book Two | Leo the Great

On the Heresy and History of the Eutychians Book One | Leo the Great

Letters and Privileges of Pope John XII

Letters and Privileges of Pope Agapetus II

Defense of the Learning of Jerome Against Jean Le Clerc