Pokrzywno
Village
Castle ruins in the village
Pokrzywno
Coordinates: 53°27′N 18°51′E / 53.450°N 18.850°E / 53.450; 18.850
Country	Poland
Voivodeship	Kuyavian-Pomeranian
County	Grudziądz
Gmina	Gruta
Population	300
Time zone	UTC+1 (CET)
• Summer (DST)	UTC+2 (CEST)
Vehicle registration	CBR
Voivodeship roads

Pokrzywno [pɔˈkʂɨvnɔ] is a village in the administrative district of Gmina Gruta, within Grudziądz County, Kuyavian-Pomeranian Voivodeship, in north-central Poland.^[1] It lies approximately 8 kilometres (5 mi) west of Gruta, 7 km (4 mi) south-east of Grudziądz, and 49 km (30 mi) north of Toruń.

The area formed part of Poland since the country's establishment in the 10th century. The village was mentioned in a document from 1222 under its Latinized name Copriven.^[2] Its Old Polish name was Koprzywno.^[2] A castle was built here by the Teutonic Order in 1242, on the site of an older fortification. Between 1278 and 1416 it was the seat of a commandery. 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] In 1454, it was recaptured by Poles, and made the seat of starosts (local administrators).^[3] The castle chapel was damaged severely by fire in 1611, but was soon renovated by starost Ludwik Mortęski.^[3] In 1657, the castle was conquered by the Swedish army during the Deluge. The castle chapel was destroyed again, however, it was soon renovated again by starost Jan Dominik Działyński [pl].^[3] In 1789, the chapel of the castle collapsed. The semi-ruined castle was later used as a quarry, supplying building materials for houses and roads nearby. Ruins of the castle still remain in the village.^[4]

In 1905, the village had 288 inhabitants.^[4]