This portrait was done after Sultan Jamshid had died. We know this from his halo which was not used to show kings or rulers in portraits until later. 

Jamshid's father lived to be over ninety years old. His son Jamshid became so impatient to become ruler that he had his father stabbed to death while he was at prayer in the mosque! 

Here, the innocent-looking Jamshid is painted standing behind a balcony, and posed with his falcon. He wears a white jama with a gold brocade turban. He is wearing the katar dagger, tucked into a gold brocaded waist sash, and sword and shield.