A minstrel was a composer of the medieval time period. Other names for them are minnesinger, troubadour and trouvere. A minstrel was also a name for black musicians in America of the 19th century and white musicians who appeared in blackface.
Minstrel Media
The Minstrels of Beverley. Woodcut of 16th-century English musicians. Left to right: pipe and tabor, fiddle, windcap instrument, lute, and shawm.