This has been one of the paintings that i lost track of a few years ago, there were people who did not believe that this painting was in the Qajar era.

Portrait of Genghis Khan, with a Youth in Attendance, c.1803-4.

Mehr Ali (one of the great royal painters of the Persian court during the reign of Sultan Fat'h Ali Shah Qajar, and is regarded as the most notable Persian portraitist of the early part of this reign) has painted it, I don't know exactly what reason Mehr Ali had to paint this painting, I don't know who his model was either, I'm researching it a lot.