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Leo V, Byzantine emperor

(Encyclopedia)Leo V (Leo the Armenian), d. 820, Byzantine emperor (813–20), successor of Michael I. A former general, Leo successfully defended (813) Constantinople against the Bulgars and concluded a 30-year tru...

Peter Damian, Saint

(Encyclopedia)Peter Damian, Saint dāˈmēən [key], Ital. Pietro Damiani, 1007?–1072, Italian reformer, Doctor of the Church, b. Ravenna. He became a Camaldolese monk at Fonte-Avellino (near Gubbio) and because ...

Maximus, Saint

(Encyclopedia)Maximus, Saint, c.580–662, Greek theologian. He was secretary to Emperor Heraclius and subsequently abbot at the monastery of Chrysopolis. To curb Monotheletism he went to Rome and persuaded Pope St...

Willibrord, Saint

(Encyclopedia)Willibrord, Saint wĭˈlĭbrôrd [key], 658–739, English Benedictine missionary, called the Apostle to the Frisians. He was brought up at Ripon by St. Wilfrid and studied further (678–90) in Irela...

Schism of East and West

(Encyclopedia)Schism of East and West, division between the Orthodox Eastern Church and the Roman Catholic Church. See Christianity; Ferrara-Florence, Council of; Leo IX, Saint; Lyons, Second Council of; papacy; Ph...

Germanus of Auxerre, Saint

(Encyclopedia)Germanus of Auxerre, Saint jərmāˈnəs, ōsĕrˈ [key], d. 448, Gaulish churchman, bishop of Auxerre (after c.418). St. Patrick was under his tutelage for 12 years. Popes Celestine I and Leo I sent ...

Sylvester I, Saint

(Encyclopedia)Sylvester I, Saint, pope (314–35), a Roman; successor of St. Miltiades (St. Melchiades). He was pope under the reign of Emperor Constantine I, who built for him the Lateran and other churches. St. S...

Caprivi, Leo, Graf von

(Encyclopedia)Caprivi, Leo, Graf von lāˈō gräf fən käprēˈvē [key], 1831–99, German chancellor, whose full name was Georg Leo, Graf von Caprivi de Caprara de Montecuculi. A former army officer and head of...

John VIII, pope

(Encyclopedia)John VIII, d. 882, pope (872–82), a Roman; successor of Adrian II. John strenuously opposed the activities of St. Ignatius of Constantinople in Bulgaria. When Ignatius died, John recognized Photius ...

Julius I, Saint

(Encyclopedia)Julius I, Saint, pope (337–52), a Roman; successor of St. Marcus. In the controversy over Arianism, when both sides appealed to him for support, he convened a synod at Rome (340), at which were pres...