De or het keurprins?

The correct Dutch article is:

de keurprins

How to use keurprins

the keurprinsde keurprins
this keurprinsdeze keurprins
that keurprinsdie keurprins
our keurprinsonze keurprins
your keurprinsjouw keurprins
every keurprinselke keurprins
which keurprins?welke keurprins?
a big keurprins / the big keurprinseen grote keurprins, de grote keurprins