The Fatih Mosque is a mosque in the Ortahisar district in Trabzon, Turkey. It was originally built in Byzantine times as the Panagia Chrysokephalos Church. It also displays the most beautiful samples of the Ottoman writing arts. It was probably first built as a basilica and as the catholicon of a monastery. Is is said that the church was built on the remains of a temple of the Roman period in the 10th century and restored in the 12th, 13th, 14th centuries.[1] The building was used as a metropolitian church in the period of the Empire of Trabzon. The main plan is the shape of a Greek cross. The church became a mosque after the Ottoman conquest and first prayer was attended by Mehmet II, who adjoined a madrasah (Fatih Madrasa) to the building.[2]