De or het landdrost?

The correct Dutch article is:

de landdrost

How to use landdrost

the landdrostde landdrost
this landdrostdeze landdrost
that landdrostdie landdrost
our landdrostonze landdrost
your landdrostjouw landdrost
every landdrostelke landdrost
which landdrost?welke landdrost?
a big landdrost / the big landdrosteen grote landdrost, de grote landdrost