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John III, king of Portugal

(Encyclopedia)John III (John the Fortunate), 1502–57, king of Portugal (1521–57), son of Manuel I. His reign saw the Portuguese empire at its apogee. The great Asian possessions were extended by further conques...

Alfonso III, king of Portugal

(Encyclopedia)Alfonso III, 1210–79, king of Portugal (1248–79), son of Alfonso II, brother and successor of Sancho II. By his marriage with Matilda, countess of Boulogne, he became count of Boulogne and thus wa...

Peter III, king of Portugal

(Encyclopedia)Peter III, 1717–86, king of Portugal (1777–86), younger brother of Joseph. He married his niece Maria I and was joint ruler with her, though she generally was the dominant figure. ...

John III, king of Poland

(Encyclopedia)John III (John Sobieski) sôbyĕˈskē [key], 1624–96, king of Poland (1674–96), champion of Christian Europe against the Ottomans. Born to an ancient noble family, he was appointed (1668) command...

John I, king of Portugal

(Encyclopedia)John I (John the Great), 1357?–1433, king of Portugal (1385–1433), illegitimate son of Peter I. He was made (1364) grand master of the Knights of Aviz and exercised his influence in opposition to ...

John II, king of Portugal

(Encyclopedia)John II (John the Perfect), 1455–95, king of Portugal (1481–95), son and successor of Alfonso V. He was an astute politician and statesman and a patron of Renaissance art and learning. He reduced ...

John IV, king of Portugal

(Encyclopedia)John IV, 1604–56, king of Portugal (1640–56). He succeeded as duke of Braganza in 1630. Descended from Manuel I and in illegitimate line from John I, he had the strongest claim to the Portuguese t...

John V, king of Portugal

(Encyclopedia)John V (John the Magnanimous), 1689–1750, king of Portugal (1706–50), son and successor of Peter II. Before his accession the Methuen Treaty (1703) with England had brought Portugal into the War o...

John VI, king of Portugal

(Encyclopedia)John VI, 1769–1826, king of Portugal (1816–26), son of Maria I and Peter III. When his mother became insane, John assumed the reins of government (1792), although he did not formally become regent...

Duarte, king of Portugal

(Encyclopedia)Duarte dwärˈtə [key], 1391–1438, king of Portugal (1433–38), eldest of the five sons of John I. He was a “philosopher-king,” notable for his legal reforms and as the author of O leal consel...