Of course, there is a Willemstad in Holland as well.
But you would find it hard to locate the Floris hotel where they locate it.
That's between texts "Den Haag" and "België", right smack in the center of this map:
(that's Europe, not the Caribbean - they are somewhere else)
Compare with MicroSoft
Funny map Paradise map Piri Re'is map Leo Belgicus
the Dutch lion
Forester fools Forester
still fools lots of people
Vinland map WWII convoys Francis Drake map fake
Jesuit fools Hitler
The Murmans convoy run
map and plate:
con-trick and prank