British Museum, London, UK. More.
A Turkish Janissary.
Janissaries were elite troops of the Sultan, recruited as children from Christian families, forcibly converted to Islam and subjected for many years to rigorous military and religious training; some had been additionally trained as sappers and engineers. Legally they were slaves, in that they enjoyed no personal rights outside their regimental life; but they received regular salaries and were anything but servile: as recently as 1451 they had staged a near-mutiny for higher pay, and janissary revolts were to be a regular feature of Ottoman history until well into the nineteenth century