|Treaty about mutual recognition and Kopernik-Grzibowitz border|
|Signed||30 July 2021|
|Location||Bridge between Karolevsk and Returna|
The Karolevsk agreement (Polish:Układ karolewski) is an agreement concluded on Kopernik-Grzibowitz border (bridge between Karolevsk and Returna) on 30 July 2021 by Kopernik and Grzibowitz. It provided mutual recognition between these countries and border on Potok Mikulczycki river.