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Alexius IV

(Encyclopedia)Alexius IV (Alexius Angelus), d. 1204, Byzantine emperor (1203–4), son of Isaac II. When his father was deposed, Alexius fled to Italy and then went to Germany. Encouraged by his brother-in-law, Phi...

Eugene IV

(Encyclopedia)Eugene IV, 1383–1447, pope (1431–47), a Venetian named Gabriele Condulmer; successor of Martin V. He was of exemplary character and ascetic habits. Gregory XII, his uncle, made him cardinal (1408)...

Eustace IV

(Encyclopedia)Eustace IV, count of Boulogne: see under Eustace II. ...

Amenemhet IV

(Encyclopedia)Amenemhet IV äˌmĕnĕmˈhĕt, āˌ– [key], d. 1792 b.c., king of ancient Egypt, of the XII dynasty; the son and successor of Amenemhet III. Under Amenemhet IV, the power of the dynasty declined, a...

Amenhotep IV

(Encyclopedia)Amenhotep IV or Amenophis IV: see Ikhnaton. ...

Romanus IV

(Encyclopedia)Romanus IV (Romanus Diogenes) dīŏjˈənēz [key], d. 1072, Byzantine emperor (1068–71). A Cappadocian general, he succeeded Constantine X by marrying his widow, Eudocia Macrembolitissa. After some...

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...

Paul IV

(Encyclopedia)Paul IV, 1476–1559, pope (1555–59), a Neapolitan named Gian Pietro Carafa; successor of Marcellus II. First superior of the Theatines (see Cajetan, Saint), he was sternly ascetic. A leading reform...

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...