The Bey of Tunis, Sid Muhammed Es Sadok Johan Fredrik Höckert (1826-1866)

The picture has something of this: people, man, facial hair, saint, mustache, veil, lid, god, portrait, cross, wear, spirituality, Renaissance, prayer.
Perhaps it’s a painting of a man wearing a red turban and a white fur stoler with a red cap on his head and a black background.