XJF324485 The Barbarossa Brothers (engraving) by Dutch School, (17th century); Private Collection; (add.info.: Aruj Barbarossa (d.1518) had red beard; his younger brother was Khayrad\'din (d.1546); together known as the Redbeard Brothers and were the chief founders of the Barbary Pirates, based on the North African coast in 16th century; their main base was Algiers;); Dutch, out of copyright.