As a prominent city with a long history, its English name was subject to gradual evolution. Early English sources spelled this word as ''Kiou'', ''Kiow'', ''Kiew'', ''Kiovia''. On one of the oldest English maps of the region,  published by Ortelius (London, 1570) the name of the city is spelled ''Kiou''. On the 1650 map by Guillaume de Beauplan, the name of the city is ''Kiiow'', and the region was named ''Kÿowia''. In the book ''Travels'', by Joseph Marshall (London, 1772), the city is called ''Kiovia''.