An antique oil on canvas painting most likely depicting a portrait of Cardinal Jules Mazarin or Giulio Mazzarino, by an unknown French 17th century artist. Unsigned. Framed. Cardinal Jules Mazarin, 1602 to 1661, was an Italian cardinal, diplomat and politician who served as the chief minister to the Kings of France Louis XIII and Louis XIV. One of a kind artwork. Antique European Fine Art For Collectors.