Bela III was the King of Hungary from 1172 to 1196. He was known for his efforts to strengthen the royal power and centralize the administration of the kingdom. Bela III also played a significant role in the expansion of Hungary's territory, particularly in the Balkans. He was considered a skilled diplomat and military leader, and his reign saw the introduction of various legal and administrative reforms. Overall, Bela III is remembered as one of the most influential rulers in Hungarian history.