Isidorus of Miletus

[ iz-i-dawr-uh s, -dohr- ]
/ ˌɪz ɪˈdɔr əs, -ˈdoʊr- /

noun

flourished 6th century a.d., Byzantine engineer. He was one of the architects of Hagia Sophia (originally an Orthodox cathedral and currently a museum in Istanbul, Turkey).
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019