Atlas of Battles

siege, medieval

Siege of Phasis

Siege of Phasis was a siege conducted in June AD 555 at Phasis, in what is now Georgia; it ran into the following year. It was part of the Lazic War, which ran from AD 541 to AD 562. The recorded result: Byzantine victory. Recorded strength: ~60,000 against 20,000 or less.

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The kingdom of Lazica (western Georgia) in Late Antiquity. Base map taken from Lazica.svg, sources: The Cambridge Companion to the Age of Justinian, pp. 492-493. Cambridge University Press 2006; Great
The kingdom of Lazica (western Georgia) in Late Antiquity. Base map taken from Lazica.svg, sources: The Cambridge Companion to the Age of Justinian, pp. 492-493. Cambridge University Press 2006; Great. Cplakidas, CC BY-SA 3.0, via Wikimedia Commons.
FoughtJune AD 555ran into the following year
WherePhasis, Georgia42.150N, 41.667E
OutcomeByzantine victory
BelligerentsSasanian EmpireagainstByzantine Empire; Lazica
Casualties and losses10,000 killedand200 killed
Part ofLazic WarAD 541 to AD 562

Where it sits in the Lazic War

Siege of Petra, AD 541Battle of Nisibis, AD 541Belisarius' invasion of Mesopotamia, AD 541Siege of Edessa, AD 544Siege of Petra, AD 548Siege of Petra, AD 550Battle of the Phasis, AD 550Battle of the Hippus, AD 550Battle of the Tsebelda fortress, AD 550Battle of Archaeopolis, AD 551Mihr-Mihroe's campaign of 554, AD 553Yawm Halima, AD 554Siege of Onoguris, AD 555Siege of Phasis, AD 555AD 541AD 555Siege of Phasis, AD 555
14 placed engagements of the Lazic War in time order; taller ticks are more widely documented. Each tick is a link.

Record

DateJune AD 555 (month precision)
to May AD 556
PlacePhasis, Georgia
42.150N, 41.667E
KindSiege, medieval
Strength~60,00020,000 or less
Casualties and losses10,000 killed200 killed
Commanders
  • Nachoragan
Siege of PhasisSiege of PhasisBattle of PotiBattle of CholokiBattle of NigoitiBattle of the CholokiSiege of PetraBattle of CholokiBattle of the CholokiSiege of PetraTrabzonSukhumiRizeArtvin100 km42.150N, 41.667E
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

Siege of Phasis is one of 128 engagements of the 6th century in the atlas and one of 116 in present-day Georgia.

Sources

Identity, coordinates, dates and the war from Wikidata Q7510308, released under CC0. Result, belligerents, commanders, strength and casualties from the infobox of the English Wikipedia article Siege of Phasis, revision 1382902986, 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.