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Archimedes

(Encyclopedia)Archimedes ärkĭmēˈdēz [key], 287–212 b.c., Greek mathematician, physicist, and inventor. He is famous for his work in geometry (on the circle, sphere, cylinder, and parabola), physics, mechanic...

Alfonso II, Spanish king of Asturias

(Encyclopedia)Alfonso II (Alfonso the Chaste), 759–842, Spanish king of Asturias (791–842), grandson of Alfonso I. He established his capital at Oviedo, which his father, Fruela I, had founded. Continuing the s...

Demetrius II, king of ancient Syria

(Encyclopedia)Demetrius II (Demetrius Nicator) nīkāˈtər [key], d. c.125 b.c., king of ancient Syria, son of Demetrius I. He was aided against the usurper, Alexander Balas, by Ptolemy VI (Ptolemy Philometer). He...

Albert II, king of the Belgians

(Encyclopedia)Albert II, 1934–, king of the Belgians (1993–2013), the younger son of Leopold III. He married Donna Paola Ruffo de Calabria in 1959; they have three children. Albert became king when Baudouin, hi...

Ferdinand II, king consort of Portugal

(Encyclopedia)Ferdinand II, 1816–85, king consort of Portugal (1837–53). The eldest son of Ferdinand, duke of Saxe-Coburg-Gotha, he married Maria II (Maria da Glória) of Portugal in 1836. After her death (1853...

Ferdinand II, Spanish king of León

(Encyclopedia)Ferdinand II, d. 1188, Spanish king of León (1157–88), son and successor of Alfonso VII. He invaded Castile and set up a protectorate during the minority (1158–66) of his nephew Alfonso VIII. He ...

Frederick Augustus II, elector of Saxony

(Encyclopedia)Frederick Augustus II, elector of Saxony: see Augustus III, king of Poland. ...

Leopold II, king of the Belgians

(Encyclopedia)Leopold II, 1835–1909, king of the Belgians (1865–1909), son and successor of Leopold I. His reign saw great industrial and colonial expansion. In 1876 he organized, with the help of H. M. Stanley...

Leopold II, grand duke of Tuscany

(Encyclopedia)Leopold II, 1797–1870, grand duke of Tuscany (1824–59). Liberally inclined at first, he granted some reforms and undertook public works. In 1848 he approved a constitution and joined Sardinia in i...

Louis II, emperor of the West

(Encyclopedia)Louis II, d. 875, emperor of the West (855–75), king of Italy (844–75), son of Emperor of the West Lothair I. In 844, Lothair I designated him king of Italy and in 850 he was crowned emperor of th...