Pokrzywno [pɔˈkʂɨvnɔ] is a village in the administrative district of Gmina Gruta, within Grudziądz County, Kuyavian-Pomeranian Voivodeship, in north-central Poland.

During the Polish–Lithuanian–Teutonic War, in 1410, the castle was captured by the Poles, and it was granted by King Władysław II Jagiełło to Dobiesław of Oleśnica.

[3] The castle chapel was damaged severely by fire in 1611, but was soon renovated by starost Ludwik Mortęski.

The castle chapel was destroyed again, however, it was soon renovated again by starost Jan Dominik Działyński [pl].

The semi-ruined castle was later used as a quarry, supplying building materials for houses and roads nearby.