The Ottoman Invasion of Serbia The Ottoman invasion of Serbia began in the late 14th century, marking a significant period in Balkan history. In 1389, the pivotal Battle of Kosovo took place, where Serbian forces, led by Prince Lazar Hrebeljanović, faced the Ottoman army under Sultan Murad I. Although the battle was inconclusive, it resulted in heavy casualties for both sides and set the stage for Ottoman dominance in the region. Following this battle, the Ottomans gradually expanded their influ