Stefan Uroš I was a Serbian king who ruled from 1253 to 1276. He was a member of the Nemanjić dynasty and is known for his efforts to strengthen the Serbian state during his reign. Uroš I focused on consolidating power and expanding the territory of Serbia, promoting trade and cultural development. Under his leadership, Serbia experienced relative stability and growth. Uroš I also worked to improve relations with neighboring states, including Byzantium and Hungary. His reign is often seen as a significant period in the history of the Serbian medieval kingdom.