Answer:
A "persian shah" is an Arab leader or ruler, "Shah" actually means "king", it's kind of a tittle granted to a sovereign of Iran and some other near places in the region; the one considered to be the strongest one was Shāh Abbās, aka Abbas the Great, from the Safavid dynasty; among his duties, to be in charge and manage the Empire, control the army and keep the hegemony; during his reign Persian Art reached a high point, and he promoted commerce in the region; another achievement was the strengthening of the Safavid dynasty and the oust of the Ottomans and Uzbeks from persian territories.