Stephen I of Hungary, also known as Saint Stephen, was the first King of Hungary, reigning from 1000 to 1038. He played a crucial role in establishing the Christian state of Hungary and is credited with unifying various tribes under his rule. His efforts to promote Christianity included founding churches and monasteries, which helped to integrate Hungary into the broader European community. Stephen was canonized as a saint by the Catholic Church in 1083, and his feast day is celebrated on August 16. He is considered a national hero in Hungary, symbolizing the country's foundation and the importance of faith in its history.