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Louis I, king of Naples

(Encyclopedia)Louis I, 1339–84, king of Naples (1382–84; rival claimant to Charles III), duke of Anjou, count of Provence, second son of John II of France. He founded the second Angevin line in Naples. As a reg...

Louis II, king of Naples

(Encyclopedia)Louis II, 1377–1417, king of Naples (1384–1417), duke of Anjou, count of Provence, son and successor of Louis I of Naples. In 1389 the antipope Clement VII (Robert of Geneva) invested him with the...

Louis III, king of Naples

(Encyclopedia)Louis III, 1403–34, king of Naples (1417–34; rival claimant to Joanna II), duke of Anjou, count of Provence, son and successor of Louis II. He invaded Naples in 1420. Queen Joanna called in the ai...

Louis I, king of Portugal

(Encyclopedia)Louis I, 1838–89, king of Portugal (1861–89), son of Maria II and Ferdinand II. He succeeded to the throne on the death of his brother Peter V. His reign was marked by much political turmoil and b...

Louis, titular duke of Burgundy

(Encyclopedia)Louis, 1682–1712, titular duke of Burgundy; grandson of King Louis XIV of France. He became heir to the throne on the death (1711) of his father, Louis the Great Dauphin. François de Fénelon was h...

Maupertuis, Pierre Louis Moreau de

(Encyclopedia)Maupertuis, Pierre Louis Moreau de pyĕr lwē môrōˈ də mōpĕrtüēˈ [key], 1698–1759, French mathematician and astronomer. For his skillful support of Newton's theory he was admitted to the Ro...

Freycinet, Louis Claude Desaulses de

(Encyclopedia)Freycinet, Louis Claude Desaulses de də frāsēnāˈ [key], 1779–1842, French marine officer. He was assigned (1800) to a French exploring expedition in Australian waters; after his return to Pari...

Géricault, Jean Louis André Théodore

(Encyclopedia)Géricault, Jean Louis André Théodore zhäN lwē äNdrāˈ tāōdôrˈ zhārēkōˈ [key], 1791–1824, French painter. He studied with Antoine Vernet and with Pierre Guérin, in whose studio he met...

Deventer, Sir Jacob Louis van

(Encyclopedia)Deventer, Sir Jacob Louis van yäˈkōp lo͞oēˈ fän dĕfˈəntər [key], 1874?–1922, Boer general. In the South African War he commanded guerrilla forces in the Cape Colony. During World War I he...

Duhamel du Monceau, Henri Louis

(Encyclopedia)Duhamel du Monceau, Henri Louis äNrēˈ lwē düämĕlˈ dü môNsōˈ [key], 1700–1782, French agriculturist and tree expert. He did experimental work on plant physiology and ecology and wrote The...