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Thutmose IV

(Encyclopedia)Thutmose IV thŏthˈmēz, tōtˈmĕs [key], reigned c.1406–1398 b.c., king of ancient Egypt, of the XVIII dynasty, son and successor of Amenhotep II. He invaded Asia and Nubia, and formed alliances ...

Thibaut IV

(Encyclopedia)Thibaut IV tēbōˈ [key], 1201–53, French trouvère, count of Champagne. He became Thibaut I, king of Navarre, in 1234, succeeding his uncle Sancho VII. He was defeated while leading a Crusade (123...

Urban IV

(Encyclopedia)Urban IV, d. 1264, pope (1261–64), a Frenchman (b. Troyes) named Jacques Pantaléon; successor of Alexander IV. In the pontifical service he was sent on missions into N Germany; then he was made bis...

Casimir IV

(Encyclopedia)Casimir IV, 1427–92, king of Poland (1447–92). He became (1440) ruler of Lithuania and in 1447 succeeded his brother Ladislaus III as king of Poland. He united the two nations more closely by plac...

Ptolemy IV

(Encyclopedia)Ptolemy IV (Ptolemy Philopator) fĭlŏpˈətər [key], king of ancient Egypt (221–205 b.c.), of the Macedonian dynasty, son of Ptolemy III and Berenice of Cyrene. He had his mother, his brother, his...

Pius IV

(Encyclopedia)Pius IV, 1499–1565, pope (1559–65), a Milanese named Giovanni Angelo de' Medici; successor of Paul IV. He was probably not related to the great Medici family. His career in Rome began in 1527, and...

Margaret of Austria

(Encyclopedia)Margaret of Austria, 1480–1530, Hapsburg princess, regent of the Netherlands; daughter of Emperor Maximilian I. She was betrothed (1483) to the dauphin of France, later King Charles VIII, and was tr...

Sylvester II

(Encyclopedia)Sylvester II, c.945–1003, pope (999–1003), a Frenchman (b. Auvergne) named Gerbert; successor of Gregory V. In his youth he studied at Muslim schools in Spain and became learned in mathematics and...

Index, in the Roman Catholic Church

(Encyclopedia)Index, in the Roman Catholic Church, list of publications forbidden to be read, called Index librorum prohibitorum [list of forbidden books]. This censorship was exercised by the Holy See. Catholics a...

Louis II, French king

(Encyclopedia)Louis II or Louis the Stammerer, 846–79, French king. He succeeded (877) his father, Emperor of the West Charles II, as king. On Louis's death his kingdom was divided between his sons Carloman and L...