county of Edessa

crusader state, Asia

Written by

The Information Architects of Encyclopaedia Britannica

Last updated

June 25, 2026

Quick Summary

The County of Edessa was one of the four Crusader states established in the Levant after the First Crusade. It was located in Upper Mesopotamia, with its capital at Edessa (modern Urfa, Turkey). This region was strategically important, controlling trade routes between Anatolia and Mesopotamia.123

The county was founded by Baldwin of Boulogne, who later became King of Jerusalem. It was a diverse territory with a population primarily of Armenians and Syrians. The County of Edessa was the northernmost and weakest of the Crusader states. Its fall to Zangi, a Muslim leader, in 1144 was a significant event that directly led to the Second Crusade. Despite attempts to recapture it, Edessa was never regained by the Crusaders.21

Summary created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

4 Britannica Sources

Ask Britannica AI about this topic

Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.

Crusades
The Crusader states
The county of Edessa, an ill-defined domain extending into the upper Euphrates region with a population consisting mainly of Armenians and Syrians, had already been established by Godfrey’s brother Baldwin. When Baldwin left to become ruler of Jerusalem, he bestowed the county, under his suzerainty, on…
Read More
The county of Edessa, an ill-defined domain extending into the upper Euphrates region with a population consisting mainly of Armenians and Syrians, had already been established by Godfrey’s brother Baldwin. When Baldwin left to become ruler of Jerusalem, he bestowed the county, under his suzerainty, on…
Read More

Byzantine Empire
Alexius I and the First Crusade
…and of the counties of Edessa and Tripoli. The Crusaders settled down to colonize and defend the coast of Palestine and Syria and to quarrel among themselves. While they did so, Alexius was able to establish a new and more secure boundary between Byzantium and Islām through the middle of…
Read More
…and of the counties of Edessa and Tripoli. The Crusaders settled down to colonize and defend the coast of Palestine and Syria and to quarrel among themselves. While they did so, Alexius was able to establish a new and more secure boundary between Byzantium and Islām through the middle of…
Read More