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Ricardo, David

(Encyclopedia)Ricardo, David, 1772–1823, British economist, of Dutch-Jewish parentage. At the age of 20 he entered business as a stockbroker and was so skillful in the management of his affairs that within five y...

Riccio, David

(Encyclopedia)Riccio, David: see Rizzio, David. ...

Rittenhouse, David

(Encyclopedia)Rittenhouse, David, 1732–96, American astronomer and instrument maker, b. near Germantown, Pa., self-educated. A clockmaker by trade, he developed great skill in the making of mathematical instrumen...

Rizzio, David

(Encyclopedia)Rizzio, David rĭtˈsēō [key], 1533?–1566, favorite of Mary Queen of Scots. He was a Piedmontese musician (also called Riccio) who arrived (1561) in Scotland with the ambassador from Savoy. He cam...

Douglas, Archibald, 5th earl of Douglas

(Encyclopedia)Douglas, Archibald, 5th earl of Douglas, 1391?–1439, Scottish nobleman; son of Archibald Douglas, 4th earl of Douglas. He fought in France for the French against the English in 1421 and persuaded hi...

Macbeth

(Encyclopedia)Macbeth măkbĕthˈ [key], d. 1057, king of Scotland (1040–57). He succeeded his father as governor of the province of Moray c.1031 and was a military commander for Duncan I. In 1040 he killed Dunca...

Ogilvy, David Mackenzie

(Encyclopedia)Ogilvy, David Mackenzie, 1911–99, British-American advertising executive. He was a chef in Paris and a door-to-door salesman before entering advertising, becoming an account executive in Britain and...

Saul

(Encyclopedia)Saul, first king of the ancient Hebrews. He was a Benjamite and anointed king by Samuel. Saul's territory was probably limited to the hill country of Judah and the region to the north, and his proximi...

Rosamond, mistress of Henry II of England

(Encyclopedia)Rosamond (Rosamond Clifford), d. 1176, mistress of Henry II of England. She was not openly acknowledged by the king until 1174, after he had imprisoned his wife, Eleanor of Aquitaine. On Rosamond's de...

Orrery, Roger Boyle, 1st earl of

(Encyclopedia)Orrery, Roger Boyle, 1st earl of, 1621–79, Irish statesman and writer; son of Richard Boyle, 1st earl of Cork. Created (1627) Baron Broghill, he studied at Trinity College, Dublin, traveled abroad, ...