Tsar Dušan, also known as Dušan the Mighty, was a significant ruler of the Serbian Empire during the 14th century. He reigned from 1331 to 1355 and is best known for expanding the empire to its greatest territorial extent. Under his leadership, Serbia became a powerful state in the Balkans, and he sought to strengthen its political and military influence. Dušan is also recognized for his legal reforms, particularly the Dušan's Code, which established a comprehensive legal system for the empire. His reign marked a cultural and economic flourishing, contributing to the development of Serbian identity and Orthodox Christianity in the region.