Mehmed besieged the city until 28 October but could not seize it. Retreating to Belgrade, he initiated peace negotiations with the Monk-Viceroy. Martinuzzi was assassinated on 17 December 1551, and peace talks ended. Sokollu Mehmed renewed his military campaign in 1552, seizing Temesvár (see Siege of Temesvár (1552)), Hollókő, Buják, Rétság, Balassagyarmat, the whole of Banat and Szolnok. Sokollu Mehmed's forces then joined with those of Ahmet Pasha advancing towards Eger. Mehmed's army assembled on the Hill of Egid but could not take the city itself.