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siege, notable, medieval

Siege of Sirmium

Siege of Sirmium was a siege conducted in April AD 580 at Sirmium, in what is now Serbia; it lasted about 2 years. It was part of the Avar–Byzantine Wars, which ran from AD 568 to AD 626. The recorded result: Avar victory.

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Map of the northern Balkans in the 6th century AD, with the Roman provinces, major settlements and roads.
Map of the northern Balkans in the 6th century AD, with the Roman provinces, major settlements and roads.. Cplakidas, CC BY-SA 3.0, via Wikimedia Commons.
FoughtApril AD 580lasted about 2 years
WhereSirmium, Serbia44.980N, 19.610E
OutcomeAvar victory
Belligerents13px Byzantine EmpireagainstAvars
Part ofAvar–Byzantine WarsAD 568 to AD 626

Where it sits in the Avar–Byzantine Wars

Siege of Sirmium, AD 580Maurice's Balkan campaigns, AD 582Comentiolus' Avar Campaign, AD 586Avar sieges of Singidunum, AD 592Siege of Thessalonica, AD 597Siege of Thessalonica, AD 604Siege of Thessalonica, AD 617AD 580AD 617Siege of Sirmium, AD 580
7 placed engagements of the Avar–Byzantine Wars in time order; taller ticks are more widely documented. Each tick is a link.

Record

DateApril AD 580 (month precision)
to AD 582
PlaceSirmium, Serbia
44.980N, 19.610E
KindSiege, medieval
Commanders
  • Bayan I
Siege of SirmiumSiege of SirmiumSiege of SirmiumSiege of ŠabacBattle of MišarBattle of HaramBattle of KarlócaSiege of ŠabacBattle of MišarBattle of HaramBattle of KarlócaSarajevoTimișoaraPécsČačakTuzlaOsijekReșițaKragujevac100 km44.980N, 19.610E
The recorded site, with the nearest other engagements in the atlas. Present-day coastlines, rivers and borders; towns from Natural Earth.

Nearest engagements

In the same war

Elsewhere in AD 580

Siege of Sirmium is one of 128 engagements of the 6th century in the atlas and one of 115 in present-day Serbia.

Sources

Identity, coordinates, dates and the war from Wikidata Q7510408, released under CC0. Result, belligerents, commanders, strength and casualties from the infobox of the English Wikipedia article Siege of Sirmium, revision 1370745296, 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.