Sultan Hamengkubuwono III was the ruler of the Sultanate of Yogyakarta in Indonesia from 1812 to 1814. He played a significant role during the Java War, which was a conflict between the Dutch colonial government and Javanese princes. His leadership helped to maintain the cultural and political identity of the Yogyakarta region during a time of upheaval. During his reign, Sultan Hamengkubuwono III focused on strengthening the sultanate's administration and promoting the arts. He was known for his efforts in preserving Javanese culture and traditions, which contributed to the rich heritage of the region. His legacy continues to influence the cultural landscape of Yogyakarta today.