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Trebizond, empire of

(Encyclopedia)Trebizond, empire of, 1204–1461. When the army of the Fourth Crusade overthrew (1204) the Byzantine Empire and established the Latin Empire of Constantinople, several Greek successor states sprang u...

Rainalducci, Pietro

(Encyclopedia)Rainalducci or Rainallucci, Pietro pyĕˈtrō rīnäldo͞otˈchē, rīnäl-lo͞otˈchē [key], d. 1333, Italian churchman (b. Corvaro, near Rieti), antipope (1328–30) with the name Nicholas V. Havin...

Paulicians

(Encyclopedia)Paulicians pôlĭshˈənz [key], Christian heretical sect. The sect developed in Armenia from obscure origins and is first mentioned in the middle of the 6th cent., where it is associated with Nestori...

Palermo

(Encyclopedia)Palermo pälĕrˈmō [key], Lat. Panormus, city (1991 pop. 698,556), capital of Palermo prov. and of Sicily, NW Sicily, Italy, on the Tyrrhenian Sea. Situated on the edge of the Conca d'Oro (Golden Co...

Wittelsbach

(Encyclopedia)Wittelsbach vĭˈtəlsbäkh [key], German dynasty that ruled Bavaria from 1180 until 1918. The family takes its name from the ancestral castle of Wittelsbach in Upper Bavaria. In 1180 Holy Roman Emper...

Sofia

(Encyclopedia)Sofia sōfēˈə, sōˈfēə [key], Bulg. Sofiya, city (1993 pop. 1,114,476), capital of Bulgaria, W central Bulgaria, on a high plain surrounded by the Balkan Mts. It is Bulgaria's chief industrial, ...

Chalcedon, Council of

(Encyclopedia)Chalcedon, Council of, fourth ecumenical council, convened in 451 by Pulcheria and Marcian, empress and emperor of the East, to settle the scandal of the Robber Synod and to discuss Eutychianism (see ...

Attila

(Encyclopedia)Attila ətĭlˈə, ătˈələ [key], d. 453, king of the Huns (445–53). After 434 he was coruler with his brother, whom he murdered in 445. In 434, Attila obtained tribute and great concessions for ...

bull, papal letter

(Encyclopedia)bull [Lat. bulla=leaden seal], papal letter. As the diplomatic organization of the papal chancery progressed in the Middle Ages, the papal bull came to be more solemn than the papal brief or encyclica...

Guelphs and Ghibellines

(Encyclopedia)Guelphs and Ghibellines gwĕlfs, gĭbˈəlēnz, –lĭnz [key], opposing political factions in Germany and in Italy during the later Middle Ages. The names were used to designate the papal (Guelph) pa...