Founder of the Lazarević Dynasty

Lazar was born around 1329 in the Fortress of Prilepac, 13 kilometres (8.1 mi) southeast of Novo Brdo, then an important mining town. His family were the hereditary lords of Prilepac, which together with the nearby Fortress of Prizrenac protected the mines and settlements around Novo Brdo. Lazar's father, Pribac, was a logothete (chancellor) in the court of Stefan Dušan, a member of the Nemanjić dynasty, who ruled as the King of Serbia from 1331 to 1346 and the Serbian Emperor (tsar) from 1346 to 1355. The rank of logothete was relatively modest in the hierarchy of the Serbian court. Dušan became the ruler of Serbia by dethroning his father, King Stefan Uroš III, then rewarding the petty nobles that had supported him in his rebellion, elevating them to higher positions within the feudal hierarchy. Lazar's father was among these nobles and was elevated to the position of logothete by pledging loyalty to Dušan. According to Mavro Orbin, a 16th-century Ragusan historian, Pribac and Lazar's surname was Hrebeljanovic. Though Orbin did not provide a source for this claim, it has been widely accepted in historiography.

Lazar Hrebeljanović was a medieval Serbian ruler who created the largest and most powerful state on the territory of the disintegrated Serbian Empire. Lazar's state, referred to by historians as Moravian Serbia, comprised the basins of the Great Morava, West Morava, and South Morava rivers. Lazar ruled Moravian Serbia from 1371 until his death in 1389. He sought to resurrect the Serbian Empire and place himself at its helm, claiming to be the direct successor of the Nemanjić dynasty, which went extinct in 1371 after ruling over Serbia for two centuries. Lazar's programme had the full support of the Serbian Orthodox Church, but the Serbian nobility did not recognize him as their supreme ruler. He is often referred to as Tsar Lazar Hrebeljanović; however, he only held the title of prince.

Lazar was killed at the Battle of Kosovo in June 1389 while leading a Christian army assembled to confront the invading Ottoman Empire, led by Sultan Murad I. The battle ended without a clear victor, with both sides enduring heavy losses. In order to protect the weakened Serbian state from the Hungarian invasion from the north, Lazar's widow, Milica, who ruled as regent for their adolescent son Stefan Lazarević, Lazar's successor, accepted Ottoman suzerainty in the summer of 1390 in exchange for a military alliance.

Lazar is venerated in the Orthodox Christian Church as a martyr and saint, and is highly regarded in Serbian history, culture and tradition. In Serbian epic poetry, he is referred to as Tsar Lazar.