Jakub Polak, also known as Jakub Reys and Jacques le Polonois, was a Polish lutenist and composer. He served as one of the court musicians at Kraków. He was court lutenist to Henry III of Poland and France. After Henry III fled Poland, Polak joined him in Paris in 1574. He died around 1605.

Polak was the author of several lute compositions, most notably preludies, fantasies, dances and several chansons. During his lifetime he was renowned for his lute improvisations.

Sources:

• https://en.wikipedia.org/wiki/Jakub_Polak_(musician)
• https://www.wikidata.org/wiki/Q326745