Chełmno Land
"Royal Prussia" () was a semi-autonomous province of the Polish–Lithuanian Commonwealth from 1569 to 1772. Royal Prussia included Pomerelia, Chełmno Land (Kulmerland), Malbork Voivodeship (Marienburg), Gdańsk (Danzig), Toruń (Thorn), and Elbląg (Elbing). Polish historian Henryk Wisner writes that Royal Prussia belonged to the Province of Greater Poland.