Fürstbistum Ermland
The voivodeship comprised the eastern lands of the historic Pomerania region, which since the Teutonic takeover of Gdańsk in 1308 had been held by the State of the Teutonic Order. After the 1454 uprising of the Prussian Confederation and the Thirteen Years' War, the area fell back to the Polish Crown according to the Second Peace of Thorn in 1466. Together with the Chełmno (former "Kulmerland") and Malbork ("Marienburg") voivodeships and the Prince-Bishopric of Warmia ("Ermland") it formed the autonomous province of Royal Prussia. The autonomy of the region was later abolished as a result of the Union of Lublin in 1569 and the area was incorporated into the Polish Crown.