Lubniewice [lubɲɛˈvʲit͡sɛ] (German: Königswalde)[citation needed] is a small town in Sulęcin County, Lubusz Voivodeship, western Poland, with 2,059 inhabitants (2019).

[3] A 1322 deed referred to a nearby settlement of German colonists named Königswalde, established in the course of the Ostsiedlung at the behest of the Brandenburgian margraves.

In 1352 the Wittelsbach elector Louis II of Brandenburg enfeoffed his ministeriales of the Waldow noble family with the Königswalde estates.

[4] After the discovery of the alum deposits in 1751, a mine was established here, which was plundered and destroyed by the Russian army in 1758 during the Seven Years' War.

[2] After World War II and the implementation of the Oder-Neisse line, the town became again part of the Republic of Poland and the German population was expelled in accordance to the Potsdam Agreement.