Stefan Uroš IV, also known as Stefan Dušan, was a Serbian king who ruled from 1331 to 1355. He was a member of the Nemanjić dynasty and is known for expanding the Serbian Empire significantly during his reign. Under his leadership, Serbia became a powerful state in the Balkans, and he was crowned as the Emperor of the Serbs and Greeks in 1346. Uroš IV implemented various reforms that strengthened the economy and centralized power. He promoted the Orthodox Christian faith and supported the construction of churches and monasteries, contributing to the cultural development of the region. His reign marked a significant period in Serbian history, influencing the future of the Balkans.