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Gotland

(Encyclopedia)Gotland gŏtˈlənd [key], Swed. Gotlands län, county, 1,225 sq mi (3,173 sq km), SE Sweden,...

Margaret I

(Encyclopedia)Margaret I, 1353–1412, queen of Denmark, Norway, and Sweden, daughter of Waldemar IV of Denmark. She was married (1363) to King Haakon VI of Norway, son of Magnus VII of Norway and Sweden. At the de...

Hanseatic League

(Encyclopedia)Hanseatic League hănˌsēătˈĭk, hănˌzē– [key], mercantile league of medieval German towns. It was amorphous in character; its origin cannot be dated exactly. Originally a Hansa was a company ...

Constantine IV, Byzantine emperor

(Encyclopedia)Constantine IV, c.652–685, Byzantine emperor (668–85), son and successor of Constans II. He defended Constantinople against the annual naval attacks of the Muslims, who finally withdrew in 678; Gr...

Muhammad IV, Ottoman sultan

(Encyclopedia)Muhammad IV or Mehmet IV, 1641–92, Ottoman sultan (1648–87). He was proclaimed sultan of the Ottoman Empire (Turkey) by the corps of Janissaries after the deposition and murder of his father, Sult...

Leo IV, Saint, pope

(Encyclopedia)Leo IV, Saint, d. 855, pope (847–55), a Roman; successor of Sergius II. He had seen the Saracen attack on Rome (846), and to prevent its recurrence he fortified the city and its suburbs. He built a ...

Leo IV, Byzantine emperor

(Encyclopedia)Leo IV (Leo the Khazar), d. 780, Byzantine emperor (775–80), son and successor of Constantine V. He owed his nickname to his mother, a Khazar princess. Leo tempered the iconoclastic excesses of his ...

Louis IV, French king

(Encyclopedia)Louis IV or Louis d'Outremer lwē do͞otrəmĕrˈ [key] [Fr.,=Louis from overseas], 921–54, French king (936–54), son of King Charles III (Charles the Simple). He spent his youth as an exile in En...

Abd al-Aziz IV

(Encyclopedia)Abd al-Aziz IV, 1880–1943, sultan of Morocco (1894–1908), son of Hassan. His weak control was evident after the death (c.1900) of the regent Ba Ahmed. His submissiveness to foreign influence, his ...

Absalon

(Encyclopedia)Absalon äkˈsəl [key], c.1128–1201, Danish churchman, archbishop of Lund (1178–1201). He had great influence on political affairs under Waldemar I and Canute VI, warred against the pagan Wends, ...