Atlas of Battles

battle, notable, medieval

Battle of Ostia

Battle of Ostia was a battle fought in AD 849 at Ostia, in what is now Italy. The recorded result: Christian League victory. Recorded strength: Unknown against Unknown.

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Battle of Ostia
Workshop of Raphael, Public domain, via Wikimedia Commons.
FoughtAD 849
WhereOstia, Italy41.750N, 12.283E
OutcomeChristian League victory
BelligerentsChristian League: Papal States; Flag of the Greek Orthodox Church.svg Byzantine Empire; Flag of Gaeta (10th century).svg Duchy of Gaeta; Flag of the Republic of Amalfi.svg Duchy of Amalfi; Double-headed_eagle_of_the_Greek_Orthodox_Church.svg Duchy of NaplesagainstMuslim fleet
Casualties and lossesMinimalandHeavy

Record

DateAD 849 (year precision)
PlaceOstia, Italy
41.750N, 12.283E
KindBattle, medieval
StrengthUnknownUnknown
Casualties and lossesMinimalHeavy
Commanders
  • Caesar of Naples
  • Pope Leo IV
Battle of OstiaBattle of OstiaSiege of OstiaSack of Rome, 1527Stand of the Swiss GuardGerman occupation of RomeBattle of the JaniculumSiege of OstiaBattle of the JaniculumNaplesPescaraL'AquilaCivitavecchiaCaserta100 km41.750N, 12.283E
The recorded site, with the nearest other engagements in the atlas. Present-day coastlines, rivers and borders; towns from Natural Earth.

Nearest engagements

Battle of Ostia is one of 193 engagements of the 9th century in the atlas and one of 1,038 in present-day Italy.

Sources

Identity, coordinates, dates and the war from Wikidata Q1268954, released under CC0. Result, belligerents, commanders, strength and casualties from the infobox of the English Wikipedia article Battle of Ostia, revision 1370452409, 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.