Ivan Asen II was a prominent ruler of the Second Bulgarian Empire, reigning from 1218 to 1241. He is known for his efforts to strengthen the empire, expand its territory, and enhance its cultural and economic status. Under his leadership, Bulgaria experienced a period of prosperity and relative stability. Ivan Asen II also played a significant role in the political landscape of the region, often engaging in alliances and conflicts with neighboring states, including the Byzantine Empire and Hungarian Kingdom. His reign is marked by military successes and the consolidation of power, which helped to elevate Bulgaria's influence in southeastern Europe.