Forming (1609-1679)
1609
In 1609 John William, Duke of Jülich-Cleves-Berg, died childless and the Elector of Brandenburg lays claim to inheritance.
Establishment (1701-1789)
1723
Initiation of the Prussian administration reform and the introduction of war chambers and domain chambers
The Golden Age (1803-1899)
1886
1896/1902 Inauguration of the Emperor Wilhelm memorials in Porta Westfalica and Hohensyburg
1896
1896/1902 Inauguration of the Emperor Wilhelm memorials in Porta Westfalica and Hohensyburg