Lionel Power

Leonel Power (also spelled Lionel, Lyonel, Leonellus, Leonelle; Polbero), c. 1380–1445, was an English composer of the early Renaissance. Along with John Dunstaple he was a dominant figure of 15th-century English music. Mainly a composer of motets and of sections of the Mass, he is the best-represented contributor in the Old Hall Manuscript. Occasionally he is referred to by his Christian name only.