Léonin
French 12th-century composer associated with polyphony in Notre Dame · France · On the map · Musicians · Lived 1135 to 1201 · aged 66
Léonin was the first known significant composer of polyphonic organum. He was probably French, probably lived and worked in Paris at the Notre-Dame Cathedral and was the earliest member of the Notre Dame school of polyphony and the ars antiqua style who is known by name, thanks to the writer known as Anonymous IV.
Léonin is read about 74 times a day, in 41 languages.
A typical day, 30 days to 6 November 2026
The middle day of the days counted, so one week of news cannot move it. The line under it is the last 104 days, one point a day.
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About this person
Though no further identification is certain, the name "Leoninus" and its Latin diminutive Leo have the French equivalents Léonin/Léo.
