Serbia, Europe, Historical Profile (1922), #007-The Turkish Invasion- Kosovo
After a few years of indecision and anarehy the Sabor met at Ipek in 1374 and elected Knez (count) Lazar Hrcbelyanovich, a kinsman of Urosh, as ruler of the Serbs. He tried to stop the further disruption of the empire and to organize a Christian league against the Turks. This was the real cause of the Turkish attacks on Bulgaria and Serbia in 13S9, which resulted in the subjugation of Bulgaria and in the defeat of the Serbs at Kosovo (June 15, 1389).
No event has made such a deep impression on the Serbs as the battle of Kosovo -probably because the flower of the Serb aristocracy fell in that battle, and because both the tsar of the Serbs. Lazar, and the sultan of the Turks, Murad I., lost their lives. The Sultan was killed by the Serb knight or voyvode Milosh Obilich (the later alteration of the inelegant Kobil "son of a brood-mare"). There exists a cycle of national songs-sung to this day by the Serb bards (guslari)-concerning this battle.