Translation:Máxima is the queen of the Netherlands.
Good question. But the name is not really redundant, being that it is a name. "der Nederlanden" is a genitive form, whereas "van der" can also mean "from the". Many Dutch names have "van der" in them. One wouldn't change a name merely because the form is archaic. You might wish to consult https://en.wikipedia.org/wiki/Van_(Dutch)