Ese Kapi Mosque

Ese Kapi Mosque (Turkish: Ese Kapı Mescidi, where mescit is the Turkish word for a small mosque), also "Isa Kapi Mosque", meaning in English "Mosque of the Gate of Jesus", was an Ottoman mosque in Istanbul, Turkey. The building was originally a Byzantine Eastern Orthodox church of unknown dedication.

The remains of the church lie in the Fatih district of Istanbul, in the neighborhood (Turkish: Mahalle) of Davutpaşa, about 500 meters east-northeast of the Sancaktar Hayrettin Mosque, another Byzantine building. The ruins of the edifice are enclosed in the complex of Cerrahpaşa University Hospital.

The origin of this Byzantine building, which lay on the southern slope of the seventh hill of Constantinople in the neighborhood named ta Dalmatou and overlooked the Sea of Marmara, is not certain. It was erected along the south branch of the Mese road, just inside the now disappeared Wall of Constantine (dating to the foundation of Constantinople by Constantine the Great) in correspondence of an ancient gate, possibly the Gate of Exakiónios (Greek: Πύλη τοῦ Ἐξακιονίου) or the Gate of Saturninus (Greek: Πύλη τοῦ Σατουρνίνου, the city's original Golden Gate). The comparison of the brickwork with those of the Pammakaristos and Chora churches suggests that the building was erected between the end of the thirteenth and the beginning of the fourteenth century, in the Palaiologan era. The proposed identification with the Monastery of Iasités (Greek: Μονῆ τοῦ Ἰασίτου), which lay in the neighborhood, remains uncertain.

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