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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...

Otto, Austrian archduke

(Encyclopedia)Otto: see Hapsburg, Otto von.

Wenceslaus I, king of Bohemia

(Encyclopedia)Wenceslaus I, d. 1253, king of Bohemia (1230–53), son and successor of Ottocar I. He invited large numbers of Germans to settle in the villages and towns of Bohemia and Moravia. In some villages pea...

Manuel II, Byzantine emperor

(Encyclopedia)Manuel II (Manuel Palaeologus), 1350–1425, Byzantine emperor (1391–1425), son and successor of John V. In his youth he was taken captive by the Turks, and during his reign the Ottomans reduced the...

Holy Spirit

(Encyclopedia)Holy Spirit or Holy Ghost [ghost, i.e., spirit, a translation of Gr. pneuma=breath, air], in Christian doctrine, the third person of the Trinity. The Holy Spirit is sometimes defined as the aspect of ...

Eutropius, consul of East Roman Emperor Arcadius

(Encyclopedia)Eutropius, d. 399, consul of East Roman Emperor Arcadius. A eunuch of the palace, he brought about the marriage (395) of Arcadius and Eudoxia and succeeded Rufinus as chief minister. He repelled (398)...

Wallach, Otto

(Encyclopedia)Wallach, Otto, 1847–1931, German chemist, Ph.D. Univ. of Göttingen, 1869. Wallach was a professor at the Univ. of Bonn from 1870 to 1889 and at the Univ. of Göttingen from 1889 to 1915. In 1910 he...

Frederick I, elector of Saxony

(Encyclopedia)Frederick I or Frederick the Warlike, 1370–1428, elector of Saxony (1423–28). As margrave of Meissen he was involved in disputes with his brothers and his uncles over the division of his father's ...

Louis I, emperor of the West

(Encyclopedia)Louis I or Louis the Pious, Fr. Louis le Pieux or Louis le Débonnaire, 778–840, emperor of the West (814–40), son and successor of Charlemagne. He was crowned king of Aquitaine in 781 and co-empe...

Bismarck, Otto von

(Encyclopedia)Bismarck, Otto von bĭzˈmärk, Ger. ôˈtō fən bĭsˈmärk [key], 1815–98, German statesman, known as the Iron Chancellor. The Bismarckian era closed with the death of Emperor Frederick III. A ...