Columbia Encyclopedia

Search results

350 results found

Helmholtz, Hermann Ludwig Ferdinand von

(Encyclopedia)Helmholtz, Hermann Ludwig Ferdinand von hĕrˈmän lo͞otˈvĭkh fĕrˈdēnänt fən hĕlmˈhôlts [key], 1821–94, German scientist. Although known especially as a physicist and biologist, he was al...

Otto III, Holy Roman emperor

(Encyclopedia)Otto III, 980–1002, Holy Roman emperor (996–1002) and German king (983–1002), son of Holy Roman Emperor Otto II and the Byzantine princess Theophano. On Otto's accession Henry the Wrangler, the ...

John XII, pope

(Encyclopedia)John XII, c.937–964, pope (955–64), a Roman (count of Tusculum) named Octavian; successor of Agapetus II and predecessor of either Leo VIII or Benedict V. His father, Alberic, secured John's elect...

Eberhard

(Encyclopedia)Eberhard āˈbərhärtˌ [key], d. 939, duke of Franconia; brother of the German king, Conrad I, whom he succeeded as duke. The first to rebel against the centralizing policy of Holy Roman Emperor Ott...

Otto IV, Holy Roman emperor

(Encyclopedia)Otto IV, 1175?–1218, Holy Roman emperor (1209–15) and German king, son of Henry the Lion, duke of Saxony. He was brought up at the court of his uncle King Richard I of England, who secured his ele...

Otto I, king of Bavaria

(Encyclopedia)Otto I, 1848–1916, king of Bavaria (1886–1913). Although incurably insane after 1872, he succeeded his brother King Louis II under the regency of his uncle Luitpold (1886–1912) and Luitpold's so...

Otto I, king of Greece

(Encyclopedia)Otto I, 1815–67, first king of the Hellenes (1833–62). The second son of King Louis I of Bavaria, he was chosen (1832) by a conference of European powers at London to rule newly independent Greece...

Lothair, French king

(Encyclopedia)Lothair, 941–86, French king (954–86), son and successor of King Louis IV. During the early part of his reign he was dominated by Hugh the Great. Even after Hugh's death he was involved in conflic...

Adelaide, empress consort of Holy Roman Emperor Otto I

(Encyclopedia)Adelaide äˈdĕlhīt [key], c.931–999, empress consort of Holy Roman Emperor Otto I, daughter of King Rudolf II of Arles. After the death (950) of her first husband, King Lothair of Italy, she was ...

Mellon, Paul

(Encyclopedia)Mellon, Paul, 1907–99, American philanthropist and art collector, b. Pittsburgh. The son of Andrew W. Mellon, he attended Yale (B.A., 1929) and Clare College, Cambridge (A.B., 1931). He worked brief...