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Leo V, Byzantine emperor

(Encyclopedia)Leo V (Leo the Armenian), d. 820, Byzantine emperor (813–20), successor of Michael I. A former general, Leo successfully defended (813) Constantinople against the Bulgars and concluded a 30-year tru...

Des Barres, Joseph Frederick Wallet

(Encyclopedia)Des Barres or Desbarres, Joseph Frederick Wallet dābärˈ [key], 1721?–1824, British army officer, surveyor, and artist. He was born of French parents (probably in Switzerland), was educated at Bas...

Döllinger, Johann Joseph Ignaz von

(Encyclopedia)Döllinger, Johann Joseph Ignaz von yōˈhän yōˈzĕf ĭgˈnäts fən dölˈĭngər [key], 1799–1890, German theologian and historian, leader of the Old Catholics. Ordained in 1822, he was subsequ...

Entrecasteaux, Joseph Antoine Bruni d'

(Encyclopedia)Entrecasteaux, Joseph Antoine Bruni d' zhôzĕfˈ äNtwänˈ bro͞onēˈ däNtrəkästōˈ [key], 1739–93, French navigator. He entered the French navy in 1754, fought (1756) at Minorca, commanded (...

Fourier, Jean Baptiste Joseph, Baron

(Encyclopedia)Fourier, Jean Baptiste Joseph, Baron, 1768–1830, French mathematician and physicist. He was noted for his researches on heat and on numerical equations. He originated Fourier's theorem on vibratory ...

Gobineau, Joseph Arthur, comte de

(Encyclopedia)Gobineau, Joseph Arthur, comte de zhôzĕfˈ ärtürˈ kôNt də gōbēnōˈ [key], 1816–82, French diplomat and man of letters. The chief early French proponent of the theory of Nordic supremacy, h...

Garnier-Pagès, Étienne Joseph Louis

(Encyclopedia)Garnier-Pagès, Étienne Joseph Louis ātyĕnˈ zhôzĕfˈ lwē gärnyāˈ-päzhĕsˈ [key], 1801–41, French politician; brother of Louis Antoine Garnier-Pagès. He was a leading figure in the oppos...

Jellachich de Buzim, Joseph, Count

(Encyclopedia)Jellachich de Buzim, Joseph, Count yĕˈlächĭch, bo͞oˈzĭm, –zhĭm [key], 1801–59, Austrian general, a Croatian nobleman. He was governor of Croatia when the revolution of 1848 broke out in Hu...

Ligne, Charles Joseph, prince de

(Encyclopedia)Ligne, Charles Joseph, prince de shärl zhôzĕfˈ prăNs də lēˈnyə [key], 1735–1814, Austrian field marshal. He belonged to an ancient princely family of Hainaut, in the Austrian Netherlands (n...

Le Verrier, Urbain Jean Joseph

(Encyclopedia)Le Verrier, Urbain Jean Joseph ürbăNˈ zhäN zhôzĕfˈ ləvĕryāˈ [key], 1811–77, French astronomer who made calculations that led to the discovery of the planet Neptune. In considering the per...