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Adrian I, pope

(Encyclopedia)Adrian I, d. 795, pope (772–95), a Roman; successor of Stephen IV. At Adrian's urging, Charlemagne crossed the Alps and defeated the Lombard king, Desiderius, who had annexed papal territory. That d...

Silverius, Saint

(Encyclopedia)Silverius, Saint sĭlvērˈēəs [key], d. 537, pope (536–37), an Italian; successor of St. Agapetus I. The son of Pope Hormisdas, who had been married before taking orders, St. Silverius was electe...

Nicephorus, Saint

(Encyclopedia)Nicephorus, Saint nīsĕfˈərəs [key], 758?–829?, patriarch of Constantinople (806–15), Byzantine historian and theologian. St. Nicephorus attended the Second Council of Nicaea as lay representa...

Slezak, Leo

(Encyclopedia)Slezak, Leo slāˈzäk [key], 1873–1946, Czech tenor, pupil of Jean de Reszke. After his debut as Lohengrin at Brno in 1896, he sang in Vienna, Berlin, and later at the Metropolitan Opera, New York ...

Delibes, Léo

(Encyclopedia)Delibes, Léo lāôˈ dəlēbˈ [key], 1836–91, French composer. After studying at the Conservatory in Paris, he became an accompanist at the Théâtre-Lyrique in 1853, and, ten years later, at the ...

Frobenius, Leo

(Encyclopedia)Frobenius, Leo lāˈō frōbāˈnēo͝os [key], 1873–1938, German archaeologist and anthropologist. An authority on prehistoric art and culture, especially of Africa, he organized 12 expeditions to ...

Baeck, Leo

(Encyclopedia)Baeck, Leo lāˈō bĕk [key], 1873–1956, German rabbi and scholar. He studied at the conservative Jewish Theological Seminary of Breslau and then at the liberal Hochschule für die Wissenschaft des...

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...

Zacharias, Saint

(Encyclopedia)Zacharias or Zachary, Saint zăkərīˈəs, zăkˈərē [key], pope (741–52), a Calabrian Greek; successor of St. Gregory III. He was the first pope after Gregory the Great not to seek confirmation ...

Szilard, Leo

(Encyclopedia)Szilard, Leo sĭˈlärd [key], 1898–1964, American nuclear physicist and biophysicist, born in Hungary. He was educated at the Budapest Institute of Technology and the Univ. of Berlin, receiving a d...