Leo III

Leo III, also known as Leo the Isaurian, was Byzantine Emperor from 717 to 741 AD. He is best known for defending the empire against Arab invasions and for initiating major reforms, including the establishment of a military province system. Leo is also noted for his role in the Iconoclast controversy, which involved the opposition to the use of religious images in worship. His efforts to centralize power and reorganize the military strengthened the Byzantine Empire during a time of turmoil, laying the groundwork for its future resilience. Leo III's reign marked a significant period in Byzantine history.