Lyonel is a given name. Notable people with the name include:
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Lyonel Feininger
Lyonel Charles Feininger (July 17, 1871January 13, 1956) was a German-American painter, and a leading exponent of Expressionism. He also worked as a caricaturist and comic strip artist. He was born and grew up in New York City, traveling to Germa ...
(1871–1956), German-American painter and caricaturist
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Lyonel Laurenceau
Lyonel Laurenceau (born 1942) is a Haitian painter. Laurenceau studied in Haiti, in the US and in France and creates paintings inspired by the human character. He won first prize at the New York City World's Fair in 1966 and later moved to Montre ...
(born 1942), Haitian painter
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Lyonel Power
Leonel Power (also spelled ''Lionel, Lyonel, Leonellus, Leonelle''; ''Polbero''; 1370 to 1385 – 5 June 1445) was an English composer of the late Medieval and early Renaissance music. Along with John Dunstaple, he was a dominant figure of 15th ...
(c. 1375 – 1445), English composer
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Lyonel Thomas Senter Jr. (born 1933), United States federal judge
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