Agia Sofia church (Mystras)

The Church of Hagia Sophia (Ancient Ἁ, Hagía Sophía, lit. 'Holy Wisdom' Greek pronunciation: [aˈʝia soˈfia]) or Holy Wisdom is a Byzantine church in the fortified medieval town of Mystras, Peloponnese, Greece. It forms part of the wider archaeological site of Mystras, which is designated as a World Heritage Site by UNESCO. Built within the palace complex, it functioned as the royal palace church until Ottoman conquest of Mystras and its conversion into a mosque. Hagia Sophia of Mystras was made back into a Christian church when Greece achieved independence during the early nineteenth century.

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