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Gregory IX

(Encyclopedia)Gregory IX, 1143?–1241, pope (1227–41), an Italian named Ugolino di Segni, b. Anagni; successor of Honorius III. As cardinal under his uncle, Innocent III, he became, at St. Francis' request, the ...

John of Procida

(Encyclopedia)John of Procida prōˈchēdä [key], c.1225–c.1302, Italian conspirator, lord of the island of Procida. He was an ardent supporter of the Hohenstaufen cause in Sicily and attempted to secure the isl...

Innocent III

(Encyclopedia)Innocent III, b. 1160 or 1161, d. 1216, pope (1198–1216), an Italian, b. Anagni, named Lotario di Segni; successor of Celestine III. Innocent III was succeeded by Honorius III. Amid all his politi...

Keats, Ezra Jack

(Encyclopedia)Keats, Ezra Jack, 1916–83, American author and illustrator of children's books, b. Brooklyn, N.Y., as Jacob Ezra Katz. During the Great Depression, he painted murals for the Works Progress Administr...

Monocacy

(Encyclopedia)Monocacy mənŏkˈəsē [key], river, c.60 mi (100 km) long, rising in S Pa., and flowing S across Md. to join the Potomac River near Frederick, Md. On its banks, just E of Frederick, the Civil War ba...

Vibo Valentia

(Encyclopedia)Vibo Valentia vēˈbō välānˈtyä [key], town (1991 pop. 34,836), Calabria, S Italy, near the Tyrrhenian Sea. It is an agricultural and commercial center. A flourishing Roman town, Vibo was destroy...

William I, king of Württemberg

(Encyclopedia)William I, 1781–1864, king of Württemberg (1816–64), son and successor of Frederick I. Before his accession he fought (1812) with the French emperor Napoleon I in Russia and later, when Frederick...

Constance, Holy Roman empress

(Encyclopedia)Constance, 1154–98, Holy Roman empress, wife of Holy Roman Emperor Henry VI; daughter of King Roger II of Sicily. She was named heiress of Sicily by her nephew King William II. On his death, however...

Potsdam

(Encyclopedia)Potsdam pŏtsˈdăm [key], city (1994 pop. 139,262), capital of Brandenburg, E Germany, on the Havel River, near Berlin. It is an industrial center and rail junction. Manufactures include processed fo...

Augusta, city, Italy

(Encyclopedia)Augusta ougo͞oˈstä [key], city, E Sicily, Italy, on an island (formerly a peninsula) in the Ionian Sea, connected by bridge with the Sicilian mainland. It is a leading ...