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Leo IV, Saint, pope

(Encyclopedia)Leo IV, Saint, d. 855, pope (847–55), a Roman; successor of Sergius II. He had seen the Saracen attack on Rome (846), and to prevent its recurrence he fortified the city and its suburbs. He built a ...

Crépy, Treaty of

(Encyclopedia)Crépy, Treaty of krāpēˈ [key], 1544, concluded by Holy Roman Emperor Charles V and King Francis I of France at Crépy-en-Laonnois (formerly spelled Crespy), Aisne dept., N France. The emperor reno...

Leopold I, grand duke of Tuscany

(Encyclopedia)Leopold I, grand duke of Tuscany: see Leopold II, Holy Roman emperor. ...

Guibert of Ravenna

(Encyclopedia)Guibert of Ravenna gwĭbˈərt, gēbĕrˈ [key], d. 1100, Italian churchman, antipope (1080–1100) Clement III, b. Parma. As imperial chancellor of Italy (1057–63), he consistently supported the Ho...

Nerva

(Encyclopedia)Nerva (Marcus Cocceius Nerva) nûrˈvə [key], c.a.d. 30–a.d. 98, Roman emperor (a.d. 96–a.d. 98). He had an honorable career as a statesman at Rome, and his reputation was blameless. At the death...

Philip of Swabia

(Encyclopedia)Philip of Swabia swāˈbēə [key], 1176?–1208, German king (1198–1208), son of Holy Roman Emperor Frederick I. After the death (1197) of his brother, German King and Holy Roman Emperor Henry VI, ...

Honorius II

(Encyclopedia)Honorius II, d. 1130, pope (1124–30), an Italian named Lamberto, b. Bologna; successor of Calixtus II. Before becoming pope he spent several years in Germany adjusting the quarrel over investiture b...

Conrad IV, ruler of the Holy Roman Empire

(Encyclopedia)Conrad IV, 1228–54, German king (1237–54), king of Sicily and of Jerusalem (1250–54), son of Holy Roman Emperor Frederick II. He was elected (1237) king of the Romans at his father's instigation...

Decius

(Encyclopedia)Decius (Caius Messius Quintus Decius) dēˈshəs [key], 201–51, Roman emperor (249–51), b. Pannonia. He was sent by Philip (Philip the Arabian) to quell a mutiny, but when the soldiers hailed him ...

Gallus

(Encyclopedia)Gallus (Caius Vibius Trebonianus Gallus) gălˈəs [key], d. 253 or 254, Roman emperor after 251. He fought in the eastern campaign that proved fatal to Decius. Gallus became emperor and accepted Host...