Zemun (Serbian Cyrillic: Земун, pronounced [zěmuːn]; Hungarian: Zimony) is a municipality in the city of Belgrade. Zemun was a separate town that was absorbed into Belgrade in 1934. It lies on the right bank of the Danube river, upstream from downtown Belgrade. The development of New Belgrade in the late 20th century expanded the continuous urban area of Belgrade and merged it with Zemun.
The town was conquered by the Kingdom of Hungary in the 12th century and in the 15th century it was given as a personal possession to the Serbian despot Đurađ Branković. After the Serbian Despotate fell to the Ottoman Empire in 1459, Zemun became an important military outpost. Its strategic location near the confluence of the Sava and the Danube placed it in the center of the continued border wars between the Habsburg and the Ottoman empires.