Saladin by Cristofano dell'Altissimo (Florence, 1525-1605)
Source: Italian Ways
Saladin portrayed as a 15th-16th century Mamluke Sultan in the nāʿūrah turban with horns.
Probably a copy of an earlier painting by another artist. Cristofano dell'Altissimo was employed to make many copies of other works.
See Sultans with Horns: The Political Significance of Headgear in the Mamluk Empire, by Albrecht Fuess
Egyptian Illustrations of Costume and Soldiers