King Naresuan was a significant monarch of Sukhothai and Ayutthaya in Thailand during the late 16th century. He is best known for his military campaigns against the Burmese, which helped to establish Thai independence and strengthen the kingdom. His reign is often celebrated for promoting national unity and cultural development. Naresuan ascended to the throne in 1590 and ruled until 1605. He is also famous for his legendary duel with the Burmese crown prince, which symbolizes Thai bravery and resilience. His legacy continues to be honored in Thailand, where he is regarded as a national hero.