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population I and II

(Encyclopedia)population I and II, in astronomy: see stellar populations. ...

Gustavus II

(Encyclopedia)Gustavus II (Gustavus Adolphus), 1594–1632, king of Sweden (1611–32), son and successor of Charles IX. In military organization and strategy, Gustavus was ahead of his time. While most powers re...

Henry IV, Spanish king of Castile and León

(Encyclopedia)Henry IV, 1425–74, Spanish king of Castile and León (1454–74), son and successor of John II. His weakness opened the way to civil strife and anarchy. The Castilian nobles refused to recognize Hen...

Sigismund II

(Encyclopedia)Sigismund II or Sigismund Augustus, 1520–72, king of Poland (1548–72). Crowned in 1530 to assure his succession, he assumed the royal functions at the death of his father, Sigismund I. By the Unio...

Catherine II

(Encyclopedia)Catherine II or Catherine the Great, 1729–96, czarina of Russia (1762–96). Catherine increased the power and prestige of Russia by skillful diplomacy and by extending Russia's western boundary i...

Valera, Diego de

(Encyclopedia)Valera, Diego de dyāˈgō dā välāˈrä [key], 1412?–1488?, Spanish adventurer and writer. Reared at the Castilian court, he was page to John II and later became one of his diplomatic agents. He ...

Augustus II

(Encyclopedia)Augustus II, 1670–1733, king of Poland (1697–1733) and, as Frederick Augustus I, elector of Saxony (1694–1733). He commanded the imperial army against the Turks (1695–96), but had no success a...

Victor Amadeus II

(Encyclopedia)Victor Amadeus II ămədēˈəs [key], 1666–1732, duke of Savoy (1675–1713), king of Sicily (1713–20), king of Sardinia (1720–30). Succeeding his father, Charles Emmanuel II, as duke of Savoy,...

Mahmud II

(Encyclopedia)Mahmud II, 1784–1839, Ottoman sultan (1808–39), younger son of Abd al-Hamid I. He was raised to the throne of the Ottoman Empire (Turkey) upon the deposition of his brother, Mustafa IV, and contin...

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