siege, major, early modern
Siege of Belgrade
Siege of Belgrade was a siege conducted on 25 June 1521 at Belgrade, in what is now Serbia; it lasted 2 months. It was part of the Hungarian–Ottoman War, which ran from 1521 to 1526. The recorded result: Ottoman victory. Recorded strength: 100,000, of which 30,000 soldiers against 700 soldiers.
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Record
| Date | 25 June 1521 to 29 August 1521 | |
|---|---|---|
| Place | Belgrade, Serbia 44.817N, 20.467E | |
| Kind | Siege, early modern | |
| Territorial change | Ottoman conquest of Belgrade | |
| Strength | 100,000, of which 30,000 soldiers | 700 soldiers |
| Commanders |
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The ground today


The recorded site stands at about 100 m; within 10.0 km the ground runs from 59 to 260 m, 201 m of relief, hilly country and today it is 52% built-up, 25% tree cover, 16% water.
Elevation from the Copernicus DEM GLO-30 (ESA, Airbus); land cover from ESA WorldCover 2021 (CC BY 4.0), within about 5 km of the recorded site. Computed, not recorded.Nearest engagements
- Siege of Belgrade 1456, same recorded site
- Siege of Belgrade 1688, same recorded site
- Siege of Belgrade 1789, same recorded site
- Siege of Belgrade 1690, same recorded site
- Siege of Belgrade 1787, same recorded site
Contested ground: this site was fought over 15 times between AD 592 and 1944.
In the same war
- After: Battle of Mohács 29 August 1526
Elsewhere in 1521
- Battle of Six Seven Philippines
- Fall of Tenochtitlan Mexico
- Battle of Villalar Spain
- First Battle of Tamao Hong Kong S.A.R.
- Battle of Noáin Spain
Siege of Belgrade is one of 1,470 engagements of the 16th century in the atlas and one of 115 in present-day Serbia.
Sources
Identity, coordinates, dates and the war from Wikidata Q535542, released under CC0. Result, belligerents, commanders, strength and casualties from the infobox of the English Wikipedia article Siege of Belgrade (1521), revision 1370739419, read 2026-11-14, licensed CC BY-SA 4.0; the article's text is not reproduced here. Present-day country and state from Natural Earth. Dates before 1582 follow the Julian calendar as recorded.