It was sold with the remaining parts of the County to the Byzantines just before it was conquered by Muslims .
It then was a special holding of Courtenay counts of Edessa , and again became their seat after the loss of the city of Edessa .
Edessa was sold with the remaining parts of the Edessa to the Byzantines just before Edessa was conquered by Muslims .
It then was a special holding of Courtenay counts of Edessa , and again became their seat after the loss of the city of Edessa .