Koça Mustafa Pasha Mosque

Koca Mustafa Pasha Mosque (Koca Mustafa Paşa Camii, also named Sünbül Efendi Camii) is a former Eastern Orthodox church converted into a mosque by the Ottomans, located in Istanbul, Turkey. The church, as the adjoining monastery, was dedicated to Saint Andrew of Crete, and was named Saint Andrew in Krisei or by-the-Judgment (ὴ ῦ Ἁ Ἀ ἐ ῇ, Monē tu Hagiu Andreu en tē Krisei). Although heavily transformed during both the Byzantine and the Ottoman eras, it is one of the few extant churches in Istanbul whose foundation goes back to the sixth century.

Mosque data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).