Acta Triadis Thaumaturgae
The lives of St. Patrick, St. Brigid, and St. Columba; published at Louvain, in 1647, by John Colgan.
Acton, John Emerich Edward Dalberg, Baron Acton
Biography of the historian best-known for his view of the corruption power causes.
Acts of Roman Congregations
A term used to designate the documents issued by the Roman Congregations.
Acts, Human
St. Thomas and the scholastics in general regard only the free and deliberate acts of the will as human.
Actus et Potentia
A technical expression in scholastic phraseology used to translate Aristotle's energeia or entelecheia, and dynamis.
Actus Purus
A term employed in scholastic philosophy to express the absolute perfection of God.
Ad Apostolicae Dignitatis Apicem
Apostolic letter issued against Emperor Frederick II by Pope Innocent IV.
Ad Limina Apostolorum
A pilgrimage to the sepulchres of St. Peter and St. Paul at Rome.
Ad Sanctam Beati Petri Sedem
Summarizes this intervention in the Jansenist controversy by Pope Alexander VII.
Ad Universalis Ecclesiae
A papal constitution dealing with admission to religious orders.
Adalard, Saint
Grandson of Charles Martel. Adalard was abbot of Corbie, and Pepin's prime minister. He died in 827.
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