- Kaysun
The Fortress of Kaysun ( _tr. Kaysun Kalesi) is located near the town of
Çakırhüyük in theAdıyaman Province of rural southeasternTurkey . ["Köy Köy Türkiye Yol Atlası" (Istanbul: Mapmedya, 2006), map 171.] The fortress was a stronghold of the crusaderCounty of Edessa . In 1131, the Danishmend Gümüshtigin besieged the place. Joscelin I, Count of Edessa, hastened to relieve the defenders and died somewhere in the vicinity.References
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