In the last one hundred years which European city changed four times the country it belonged?
Lemberg / Lvov / Lviv
Started as part of Hapsburg Galicia -> Captured by Russian empire during the First World War -> Recaptured by the Hapsburg Empire -> short-lived Ukrainian state -> independent Poland -> invaded by Soviet Union -> invaded by Nazi Germany -> invaded again by Soviet Union -> USSR disintegrated and it became part of independent Ukraine