At that time it was part of the Duchy of Racibórz (Ratibor), the eastern border of which was marked by the Przemsza River.

Imielin, like the neighbouring villages of Kosztowy and Chełm Śląski was nevertheless isolated from the rest of the duchy by the dense forest which were a feature of the area formed by the sources and headwaters of the Kłodnica and Mleczna rivers.

Following the annexation of Silesia to Prussia by Frederick the Great, sovereignty over the villages was removed from the bishops of Kraków in 1772, and in 1796 administrative control and ownership of the land was also transferred to the Prussian crown.

During the period of pan-European warfare with which the nineteenth century opened, the Napoleonic general Jean Lannes, who had been appointed Prince of Severia by the Duchy of Warsaw, asserted control over Imielin, along with Severia, citing in support the fact that historically both had belonged to the Bishopric of Kraków.

Following the end of the Napoleonic War, Imielin was in 1817 returned to Prussia, and in 1818 it was incorporated into the newly created Pleß administrative district.