Ismail I, Shah (persia (modern)) : All Data
Ismail I was the Shah of the Safavid dynasty, ruling from 1501 to 1524. He established the Safavid Empire in Persia and is known for his conversion to Twelver Shia Islam, making it the state religion. During his reign, Ismail I fought several significant wars, including the Battle of Chaldiran in 1514 against the Ottoman Empire, which resulted in a decisive Ottoman victory and the loss of significant territories for the Safavids. This war is consistent with the calculated timespan of Ismail I's rule.