Note 718 — Chapter XIV · THE WALLS ALONG THE GOLDEN HORN.
Reading edition
Patriarch Constantius, Ancient and Modern Consple., pp. 85, 86. The church was erected or restored by Maria, the natural daughter of Michael Palæologus, upon her return to Constantinople, after the death of her husband, the Khan of the Mongols. It has remained in the possession of the Greek community, in virtue of a firman of Mehemet the Conqueror, who presented the church to Christodoulos, the architect of the mosque erected by the Sultan on the Fifth Hill (Acta Patriarchatus CP., vol. i. p. 321, year 1351).