It was not acquired. It is the area surrounding the French capital, Paris. It has always been part of France, since Roman times when France was called Gaul.
Note that the Ile de France is not an island, but a region of continental France.
Paris is the capital of Ile de France
Paris is in the center of the "ile-de-France" region.
Paris, France, specifically the Ile de France.
Ile de France
Ile de France
Ile de France
Ile de France
Ile de France is the Paris region. Central North.
Same as the normal France one.
ile de France
Ile de France
Ile de France