Jacob de Senleches
Born: 1378, Saint Luc, Switzerland
Died: 1395
Nationality: French
Jacob Senleches (also Jacob de Senlechos [i.e. Senleches] and Jacopinus Senlesses) was a Franco-Flemish composer and harpist of the late Middle Ages. He composed in a style commonly known as the ars subtilior.
Read more at https://en.wikipedia.org/wiki/Jacob_Senleches