found:Encycl. Brit., 15th ed.(Constantinople; orig. known as Byzantium; after its conquest in 1453, usage of Istanbul became increasingly predominant until law of 1930 stipulated that Istanbul be only name for city)
found:Brockhaus(Konstantinopel; after 1453 named by Turks Istanbul)
found:İsl. ansikl., 1959(under Istanbul: Kostantiniye; from 10th cent. Sitanbul began to be used; after conquest İslâmbol appeared)
found:Büyük lûg. ve ansikl., 1971(under Istanbul: Form close to modern Istanbul used before conquest; in late 14th and early 15th cent. Europ. sources report Konstantinopolis as being called İstimboli by Greeks and İstanbul (Stambul) by Turks)
found:Iordanoglou, A.K. To Ethnikon Iōakeimeion Parthenagōgeion Kōnstantinoupoleōs, 1882-1988, 1989:p. 19 (Kōnstantinoupolē)
found:Il circo di Costantinopoli nuova Roma, 2001.
found:Kotnik, Janko. Slovensko-angleški slovar, 1962:page 753 (Bizanc: Byzantium, Constantinople)
Constantinople
Label from public data source Wikidata