when. The central apse and the prothesis have undergone later repairs. Also later are the four pilasters outside.
The monastery was founded in 1152 by the sevastokrator Isaakios Komnenos, the third son of Alexios I. Isaakios composed the typikon (regulations) of the monastery, and was buried there. Two hundred years later, the catholikon was converted into the mosque of Suleyman, and five and a half centuries later was again converted into a Christian church.
Service Unit: 15th Ephorate of Byzantine Antiquities _x000D_
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