Constantinople

1. the former capital of the Eastern Roman Empire; it was built on the site of ancient Byzantium, and the name was changed to Istanbul by the Turks.
   

The name change was the subject of a humorous song in the 1950's "Istanbul (not Constantinople)":

Artists: The Four Lads 
 -- peak Billboard position # 10 in 1953
 -- Words by Jimmy Kennedy and Music by Nat Simon
 -- (C) Chappell & Co. 

 Istanbul was Constantinople
 Now it's Istanbul, not Constantinople
 Been a long time gone, Constantinople
 Now it's Turkish delight on a moonlit night

 Every gal in Constantinople
 Lives in Istanbul, not Constantinople
 So if you've a date in Constantinople
 She'll be waiting in Istanbul

 Even old New York
 Was once New Amsterdam
 Why they changed it I can't say
 People just liked it better that way

 Take me back to Constantinople
 No, you can't go back to Constantinople
 Now it's Istanbul, not Constantinople
 Why did Constantinople get the works?
 That's nobody's business but the Turks'