Mirian III was a prominent king of Iberia, an ancient kingdom located in present-day Georgia. He ruled during the 3rd century AD and is best known for his significant role in the Christianization of the region. Under his leadership, Iberia became one of the first countries to adopt Christianity as the state religion. Mirian III is often credited with establishing the Georgian Orthodox Church and promoting the spread of Christianity throughout his kingdom. His reign marked a pivotal moment in Georgian history, as it laid the foundation for the country's enduring Christian identity and cultural heritage.