In the second Battle of Kosovo in 1448, the Hungarian Catholic coalition under John Hunyadi was defeated by the Ottoman Turkish-led coalition under Murad II.

The battle was fought between October 7th and 10th in the Kosovo Field (Kosovo Polje). Lord Dan of Wallachia and Đurađ Branković of Serbia fought with the Turks, while the Albanian George Kastriota remained neutral.

With this loss, the Roman Catholic forces of the west lost hope of containing the advance of the Ottoman Muslims (backed by Orthodox Christians), and the Balkans remained under sure control of the Ottoman Empire.