Lazar Hrebeljanović was a prominent Serbian leader in the late 14th century, known for his role as a prince and military commander. He is best remembered for his efforts to unite the Serbian territories during a time of political fragmentation and external threats, particularly from the Ottoman Empire. Lazar ruled from 1373 until his death in 1389, and he is often associated with the famous Battle of Kosovo, where he fought against the Ottomans. His legacy is significant in Serbian history, symbolizing resistance and national identity, and he is venerated as a saint in the Serbian Orthodox Church.