HistoryData
war1346

1346 siege of Genoese colony Caffa

January 1, 1346

The siege is notable as an early instance of biological warfare, with plague-infected corpses reportedly catapulted into Caffa, possibly spreading the Black Death westward.

Quick Facts

Year
1346
Category
war

Key Facts

Besieger
Jani Beg of the Golden Horde
Besieged City
Caffa (modern Feodosia), Crimea
Colony Owner
Republic of Genoa
Century
14th century (1340s)
Alleged Biological Weapon
Plague-infested corpses catapulted over walls
Key Source
Account by Italian notary Gabriel de Mussis

Location

Map of Feodosia, UkraineMap of Feodosia, UkraineFeodosia, Ukraine

Cause → Event → Consequence

Cause

Caffa was a prosperous Genoese trading colony in Crimea, part of the maritime network known as Gazaria. Tensions between the Golden Horde and the Genoese colonists led Jani Beg to launch a sustained military campaign to seize the strategically valuable port city during the 1340s.

Event

Jani Beg's forces besieged Caffa across two periods in the 1340s. The Golden Horde employed intense military pressure, but was ultimately forced to withdraw. Before or during the retreat, according to Gabriel de Mussis, the Horde catapulted corpses of plague victims over the city walls in what is considered one of the earliest recorded acts of biological warfare.

Consequence

Survivors and traders fleeing Caffa are believed to have carried plague westward into the Mediterranean world. This has led historians to identify the siege as a possible vector for the spread of the Black Death into Europe, one of the deadliest pandemics in human history, which killed tens of millions across the continent.

Belligerents & Mobilization Analysis

Side A

1 belligerent

Golden Horde
Key Commanders

Jani Beg.

Side B

1 belligerent

Republic of Genoa (Caffa garrison)
Outcome
Golden Horde forces withdrew; Caffa remained under Genoese control

Timeline Context

Timeline around 134613461343134413451347134813491346 battle during the Hundred Years' War1346 Medieval battle between England and Scotlandsiege-of-caffa-1346