Hiero I of Syracuse was a prominent ruler in ancient Sicily, reigning from 478 to 467 BC. He initially served as a general in the army of Cyrus the Great and later became the tyrant of Syracuse, a powerful city-state. Hiero is known for his military successes, including victories against the Carthaginians and Etruscans, which helped to secure Syracuse's dominance in the region. Under Hiero's rule, Syracuse flourished economically and culturally. He was a patron of the arts and supported famous poets like Pindar. Hiero also implemented various public works and reforms, contributing to the city's prosperity and stability during his reign.