Preacher and opponent of Calvinists and Jansenists.

A theologian and Church historian of the latter part of the twelfth century.

An English priest, canonist, and chronicler.

A prolific writer of Latin Hymns, born in the latter part of the twelfth century.

French Cistercian, Abbot of the monastery of Perseigne in the Diocese of Mans, born about the middle of the twelfth century.

An English chronicler of about the middle of the fourteenth century.

A monk of Franconia and one of the most learned musicians of his age.

A German historian and geographer of the eleventh century.

Discusses his importance to the Fathers and to the authors of the many apocryphal writings of the first five centuries of the Christian Era.

First man and father of the human race.

Apostle of Prussia. Bishop of Prague, forced to flee his see. Missionary to the Hungarians and Poles. He was murdered in 997.

Apostle of the Slavs. Monk, missionary to Russia, abbot, and bishop of Magdeburg, d. 981.

Archbishop of Mainz (Mayence) 1111 to 1137.

Archbishop of Hamburg-Bremen; born about 1000; died 1072.

Grandson of Charles Martel. Adalard was abbot of Corbie, and Pepin's prime minister. He died in 827.

A papal constitution dealing with admission to religious orders.

Summarizes this intervention in the Jansenist controversy by Pope Alexander VII.

A pilgrimage to the sepulchres of St. Peter and St. Paul at Rome.

Apostolic letter issued against Emperor Frederick II by Pope Innocent IV.

One of the first to spread Manicheism in the Christian Orient.

A term employed in scholastic philosophy to express the absolute perfection of God.

A technical expression used in scholastic philosophy.

A technical expression in scholastic phraseology used to translate Aristotle's energeia or entelecheia, and dynamis.