The Fortress of Kaysun ( tr, Keysun Kalesi) is located near the village of Çakırhüyük, which used to be named Keysun, in the

Adıyaman Province Adıyaman Province ( tr, , ku, ) is a province in the Southeastern Anatolia Region of Turkey. The capital is Adıyaman. The province is considered part of Turkish Kurdistan and has a Kurdish majority. Adıyaman Province was part of the provi ...

of rural southeastern

Turkey Turkey ( tr, Türkiye ), officially the Republic of Türkiye ( tr, Türkiye Cumhuriyeti, links=no ), is a list of transcontinental countries, transcontinental country located mainly on the Anatolia, Anatolian Peninsula in Western Asia, with ...

.''Köy Köy Türkiye Yol Atlası'' (Istanbul: Mapmedya, 2006), map 171. The fortress was a stronghold of the crusader

County of Edessa The County of Edessa (Latin: ''Comitatus Edessanus'') was one of the Crusader states in the 12th century. Ferdinandi, Sergio (2017). La Contea Franca di Edessa. Fondazione e Profilo Storico del Primo Principato Crociato nel Levante (1098-115 ...

. In 1131, the

Danishmend The Danishmendids or Danishmends ( fa, دودمان دانشمند; tr, Dânişmendliler) was a Turkish beylik that ruled in north-central and eastern Anatolia from 1071/1075 to 1178. The dynasty centered originally around Sivas, Tokat, an ...

Emir Gazi Emir Gazi or known as Emir Melikgazi was the third ruler of Danishmendids and the elder son of Gazi Gümüshtigin. Life After Gazi Gümüshtigin's death, the country was divided into two. Emir Gazi ruled Sivas and surrounding, while his brother S ...

besieged the place. Joscelin I, Count of Edessa, hastened to relieve the defenders and died somewhere in the vicinity.

References

External links

About Keysun
County of Edessa Crusader castles Buildings and structures in Adıyaman Province 1130s in the Crusader states {{Adıyaman-geo-stub