Giraut de Bornelh
Born: c. 1138, Bourney, nr Périgueux, France
Died: 1215
Nationality: French
Giraut de Bornelh whose first name is also spelled Guiraut and whose toponym as de Borneil or de Borneyll, was a troubadour connected to the castle of the viscount of Limoges. He is credited with the formalisation, if not the invention, of the "light" style, or trobar leu.
Read more at https://en.wikipedia.org/wiki/Giraut_de_Bornelh