Neuschwanstein was completed in 1886. Undeniably a very archetypal castle. So much so that of course it was the basis for Disney's Sleeping Beauty castle, which opened at Disneyland in Anaheim in 1955 - at which time the castle it took its inspiration from was not even 70 years old.

Now Disney's Sleeping Beauty castle is itself over 70 years old, making it arguably just as much a historical 'castle' as Neuschwanstein.