Polish Janissary
Polish
Janissaries of King Jan III Sobieski, 1683. The first company was made up out of captives
who volunteered to switch sides. The second company deserted the Sultan and switched
sides voluntarily in the 1670s, officers, men and pay-chest included.
Private magnates often retained a Janissary unit as personal troops and bodyguards. These were of course generally local guys - they were just dressed as Janissaries.

Polish Janissary hat, 18th C.