Đurađ Branković
In 1444, in accordance with the terms of the Peace of Szeged between the Kingdom of Hungary and the Ottoman Empire the Sultan returned Smederevo to Đurađ Branković, who was allied to John Hunyadi. On 22 August 1444 the Serb prince peacefully took possession of the evacuated town. When Hunyadi broke the peace treaty, Đurađ Branković remained neutral. Serbia became a battleground between the Kingdom of Hungary and the Ottomans, and the angry Branković captured Hunyadi after his defeat at the Second Battle of Kosovo in 1448. Hunyadi was imprisoned in Smederevo fortress for a short time.