A ‘başıbozuk’ (irregular soldier of the Ottoman army). From the Balkans (Epirus or Albania). Late-ottoman, half of the century. This doesn't look a like a Bashi Bazouk but more like a normal Greek or Albanian male.
Georgios Karaiskakis (Greek: Γεώργιος Καραϊσκάκης) born Georgios Iskos (Greek: Γεώργιος Ίσκος) (January 23, 1780 or January 23, 1782 – April 23, 1827) was a famous Greek tepht, armatolos, military commander, and a hero of the Greek War of Independence. Nickname: The Nun’s Son