Ево неких навода са мреже што се тиче бројности сукобљених војски у Косовској бици:
Murad's army might have numbered 27,000-40,000. Assuming that the 40,000 estimate is correct, it probably included some 5,000 Janissaries, 2,500 of Murad's cavalry guard, 6,000 spahis (cavalry), 20,000 azaps (infantry) and akincis (mounted archers) and 8,000 of his vassals. Based on the estimate of 25,000, some 15,000 were under Lazar's command, 5,000 Vuk's, and the remainder under Vlatko's.
http://www.newworldencyclopedia.org/entry/Battle_of_Kosovohttps://en.wikipedia.org/w/index.php?title=Battle_of_Kosovo&oldid=96595841References:
Sedlar, Jean W. East Central Europe in the Middle Ages, 1000-1500. University of Washington Press. p. 244. "...Nearly the entire Christian fighting force (between 12,000 and 20,000 men) had been present at Kosovo, while the Ottomans (with 27,000 to 30,000 on the battlefield) retained numerous reserves in Anatolia..."
Cox, John K. The History of Serbia. Greenwood Press. p. 30. "...The Ottoman army probably numbered between 30,000 and 40,000. They faced something like 15,000 to 25,000 Christian soldiers..."
Cowley, Robert. The Reader's Compagnion to Military History. Houghton Mifflin Books. p. 249. "...On June 28, 1389, an Ottoman army of between thirty thousand and forty thousand under the command of Sultan Murad I defeated an army of Balkan allies numbering twenty-five thousand to thirty thousand under the command of Prince Lazar of Serbia at Kosovo Polije (Blackbird's Field) in the central Balkans..."
"Kosovska bitka". Vojna Enciklopedija (in Serbo-Croatian). Belgrade: Vojnoizdavački zavod. 1972.