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Diane de Poitiers

(Encyclopedia)Diane de Poitiers pwätyāˈ [key], 1499–1566, duchess of Valentinois, mistress of King Henry II of France. Noted for her beauty, Diane, who was much older than Henry, retained her influence over hi...

diminishing returns, law of

(Encyclopedia)diminishing returns, law of, in economics, law stating that if one factor of production is increased while the others remain constant, the overall returns will relatively decrease after a certain poin...

Drayton, Michael

(Encyclopedia)Drayton, Michael, 1563–1631, English poet. The son of a prosperous tradesman, he received his educational training in the house of Sir Henry Goodere, where he served as page. There he made a lasting...

Daniel, Samuel

(Encyclopedia)Daniel, Samuel, 1562?–1619, English poet and historian. He was tutor to William Herbert, 3d earl of Pembroke, and later to Lady Anne Clifford. Eventually he found favor with James I, and in 1603 he ...

Underhill, John

(Encyclopedia)Underhill, John, c.1597–1672, military commander in the American colonies, b. England. In 1630 he accompanied John Winthrop (1588–1649) to Massachusetts Bay, and in 1637 he distinguished himself a...

Henry VIII, king of England

(Encyclopedia)Henry VIII, 1491–1547, king of England (1509–47), second son and successor of Henry VII. Henry was a supreme egotist. He advanced personal desires under the guise of public policy or moral rig...

Sforza

(Encyclopedia)Sforza sfôrˈtsä [key], Italian family that ruled the duchy of Milan from 1450 to 1535. Rising from peasant origins, the Sforzas became condottieri and used this military position to become rulers i...

Matamoros, Mariano

(Encyclopedia)Matamoros, Mariano märyäˈnō mätämōˈrōs [key], d. 1814, Mexican revolutionist in the war against Spain. He was, like Miguel Hidalgo y Costilla and José María Morelos y Pavón, a priest with ...

Marschner, Heinrich August

(Encyclopedia)Marschner, Heinrich August hīnˈrĭkh ouˈgo͝ost märshˈnər [key], 1795–1861, German opera composer. Marschner's first opera, Heinrich IV und d'Aubigné, was produced by Carl Maria von Weber in ...

Hebbel, Christian Friedrich

(Encyclopedia)Hebbel, Christian Friedrich krĭsˈtyän frēˈdrĭkh hĕbˈəl [key], 1813–63, German tragic dramatist. Born poor, he was largely self-educated. Hegel's historical theories influenced his work, whi...