Grudziądz (; ) is a city in northern Poland, with 92,552 inhabitants (2021). Located on the Vistula River, it lies within the Kuyavian-Pomeranian Voivodeship and is the fourth-largest city in its province.

Grudziądz is one of the oldest cities in north-central Poland, founded by King Bolesław I the Brave over 1000 years ago. The well-preserved Old Town has various Gothic and Baroque landmarks, several included on the European Route of Brick Gothic, most notably the unique Grudziądz Granaries, declared a Historic Monument of Poland. Grudziądz is a former royal city of Poland, and became known as the "City of Uhlans" being the location of the former Polish Cavalry Training Centre. Situated at the crossroads of important highways, it is a city of industry and services, and a noted centre for water sports and motorcycle speedway racing.

Geographical location Grudziądz is located close to the east shore of the river Vistula. It is located in Chełmno Land.

History Early medieval Poland Grudziądz was founded by the Duke of Poland, Bolesław I the BraveWielka encyklopedia polski: Tom 1 Wojciech Słowakiewicz, Jacek Słowiński, Piotr Turkot page 270 Fogra, 2000 of the Piast dynasty.

Initially Grudziądz was a defensive stronghold, known as a gord. The fortress and tower were built to protect the Poles from attacks by the Baltic Prussians.

Monastic State of the Teutonic Knights The settlement was re-fortified again from 1234 by the Teutonic Order. The erection of the castle, with the help of stone as building material, was begun around the middle of the 13th century. Under the protection of the castle the settlement gradually began to develop into a town.

In 1277 both "the castle and the town" were besieged heavily by the Yotvingians. The settlement adopted Kulm law in 1291 while under the rule of the monastic state of the Teutonic Knights.

The oldest building parts of the Catholic St. Nicholas' Church stem from the end of the 13th century. The Holy Spirit Church, which apparently was founded during the 13th century, is mentioned together with the town's hospital for the first time in 1345. Other documents reveal that in the 14th century the town already had a well-developed infrastructure. A document of 1380, as an example, refers to the construction of an aqueduct, a fountain and a town-hall cellar.

In the 14th century, papal verdicts ordered the restoration of the town and region to Poland, however, the Teutonic Knights did not comply and continued to occupy it. During the era of the Teutonic Knights, Graudenz had become a distinguished trade center in particular for textiles and agricultural products including grain. In 1411, Nicholas von Renys, leader of the Lizard Union, which sought to reintegrate the city and region with Poland, was unlawfully and without defense beheaded by the Teutonic Knights at the Market Square. Around 1454, Graudenz had already reached about the same level of economic development as other towns in the western part of the State of the Teutonic Order, such as Danzig (Gdańsk), Elbing (Elbląg), Thorn (Toruń), Marienburg (Malbork), Kulm (Chełmno), Konitz (Chojnice), Neumark (Nowe Miasto Lubawskie) and Preußisch Stargard (Starogard Gdański).

Kingdom of Poland

In 1440, the city co-founded the Prussian Confederation which opposed the Monastic State of the Teutonic Knights. At the beginning of the Thirteen Years' War (1454–66), the citizens forced the Teutonic Order to hand over the castle. The confederation asked the King of Poland, Casimir IV Jagiellon to join Poland. The King agreed and signed the act of incorporation in Kraków in March 1454. During the entirety of the war, both the city and the castle remained under Polish control. The 1466 peace treaty confirmed the re-incorporation of Grudziądz to Poland.Górski, p. 88-89, 206-207

Between 1454 and 1772 the city was part of the Polish Chełmno Voivodeship, which itself was since 1466 part of the Polish province of Royal Prussia, soon included in the larger Greater Poland Province. The Grudziądz Castle was seat of the local starostas (royal administrative officials). It was often visited by Polish kings.

After the great depression of the Thirteen Years' War, new economical growth in the town was slow before the middle of the 16th century. Economic progress was hampered by the religious struggles and by the Polish–Swedish wars throughout the 17th century. At the end of 1655, during the Swedish Deluge, the city and its castle were captured by the Swedes and occupied for four years. In 1659, the Swedes had been besieged for several days and retreated. During their departure, part of the town was destroyed by fire.

In 1522, Nicolaus Copernicus, who aside from his astronomical work was also an economist, presented his treatise Monetae cudendae ratio in Grudziądz. In it he postulated the principle that "bad money drives out good" which became known as the Gresham's law or the Gresham–Copernicus law. This work included an early version of the quantity theory of money – a key concept in economics.Angus Armitage, The World of Copernicus, 1951, p. 91.

Following Protestant Reformation, in 1569 the local Protestants were given access to the Holy Spirit Church; in 1572 Catholicism seemed to have vanished almost entirely in the town. In 1597 King Sigismund III Vasa gave order that the Protestants had to return all churches taken over by them in the past to the Catholics, including all accessories. The Protestants remained in possession solely of St. George's Church until in 1618 when the base of the building was washed away by the Vistula River and the church was torn down. For a while, they used once more the vacant Holy Spoirit Church, until in 1624 this building together with the hospital had to be handed over to nuns of the Order of Saint Benedict for the purpose of founding an affiliated institution.

Since 1622 Jesuits from Toruń had a station in Grudziądz, which in 1640 was already so strong that it was able to form a residence in Grudziądz, despite objections from the side of the magistrate of the town. In 1648 construction work for building a Jesuit church was taken up. The Jesuits also founded the Jesuit College, which was the first high school in Grudziądz.Roman Pawlak, Zabytkowe ratusze. Warsaw, MUZA SA, 2003, p. 68-69

The town proper was surrounded by town walls, except on the side of river Vistula, where instead of walls there stood huge massive grain silos, from where grain could be transported through wooden pipes to the embankment of the river.Johann Friedrich Goldbeck: Vollständige Topographie des Königreichs Preußen. Teil II, Marienwerder 1789, p. 28, no. 1.

Prussian Partition of Poland Following the First Partition of Poland declared on 5 August 1772, the city was annexed by the Kingdom of Prussia. In 1773, it had a population of only 2,172 persons. In the late 18th and early 19th centuries, it was part of the area affected by the Partitions of Poland. To stimulate municipal trade, Frederick the Great brought in 44 colonist families. Grain trade flourished. Among the most successful grain traders were the Schönborn family.Hans-Jürgen Bömelburg: Zwischen polnischer Ständegesellschaft und preußischem Obrigkeitsstaat, Oldenbourg, Munich 1995, p. 404 (restricted preview ) In 1776, a decision was made to build a fortress in the town. Between 1796 and 1804, by decision of the King of Prussia, the Grudziądz Castle was demolished. During the Napoleonic invasion in Prussia in 1806–1807, the fortress was successfully defended by General of Infantry Wilhelm René de l'Homme de Courbière against attacks by French troops.

In 1871, Graudenz became part of the unified German Empire. Administratively it belonged to the administrative district of Regierungsbezirk Marienwerder in the Province of West Prussia. With the improvement of the railway network in Germany, Graudenz transiently lost its meaning as an important trading place for grain. In 1878, the railway line to Jabłonowo Pomorskie (then Germanized as Goßlershausen) opened. After the construction of a railroad bridge across the Vistula in 1878, a railway line to Laskowice (Laskowitz) opened. Graudenz became a rapidly growing industrialized city. In 1883 also the Thorn (Toruń)-Graudenz-Marienburg (Malbork) railway line went into operation.

In 1899, the Chamber of Commerce was established in Graudenz. The Imperial German Navy named a light cruiser class and its lead ship, the SMS Graudenz, after the city. The newspaper Der Gesellige, founded by book seller Rothe in 1826, belonged up to the end of World War I to the most widely spread newspapers of east Germany. Around the turn to the 20th century, Graudenz had become an important cultural centre in east Germany with numerous schools, municipal archives and a museum.

The city was the site of a military prison for Polish activists. In 1832, also 249 Polish insurgents the November Uprising were imprisoned by the Prussians in the local fortress and subjected to forced labour, malnutrition, beatings and insults. Released prisoners who left Europe formed the Gromada Grudziądz in Portsmouth, England in 1835 as part of the Great Emigration movement.Historia Polski, 1795–1918 Stefan Kieniewicz Państwowe Wydawnictwo Naukowe, 1975 page 142

Germanisation of the Poles in the Prussian Partition Frederick had nourished a particular contempt for the Polish state and people. Germanisation was enforced to assimilate residents.Hans-Jürgen Bömelburg: Zwischen polnischer Ständegesellschaft und preußischem Obrigkeitsstaat, Oldenbourg, Munich 1995, p. 205 ff. (restricted preview) He brought in German and Frisian workers and peasants, who in his opinion, were more suitable for building up his new civilization. Frederick settled around 300,000 colonists in the eastern provinces of Prussia. Using state funds for colonization, German craftsmen were placed in all local Polish cities.Fryderyk II Stanisław Salmonowicz Zakład Narodowy im. Ossolińskich, 1985 "Z funduszy na kolonizację osiedlano w miastach fachowców z krajów niemieckich" A second colonization wave of ethnic Germans was pursued by Prussia after 1832.Wielka historia Polski t. 4 Polska w czasach walk o niepodległość (1815–1864). Od niewoli do niepodległości (1864–1918) Marian Zagórniak, Józef Buszko 2003 page 186 Laws were passed aimed at Germanisation of the Polish inhabited areas and 154,000 colonists were settled by the Prussian Settlement Commission before World War I. Professor Martin Kitchen writes that in areas where the Polish population lived alongside Germans a virtual apartheid existed, with bans on the Polish language and religious discrimination, besides attempts to colonize the areas with Germans.A history of modern Germany, 1800–2000 Martin Kitchen Wiley-Blackwel 2006, page 130

Approximately 16,850 Poles and about 26,000 Germans lived in the district of Graudenz.Michael Rademacher: Deutsche Verwaltungsgeschichte Provinz Westpreußen, Stadt- und Landkreis Graudenz (2006). To resist Germanisation,Kraj a emigracja. Ruch ludowy wobec wychodźstwa chłopskiego do krajów Ameryki Łacińskiej (do 1939 roku) Muzeum Historii Polskiego Ruchu Ludowego 2006, page 290 Polish activists started to publish the newspaper "Gazeta Grudziądzka" in 1894. It advocated the social and economic emancipation of rural society and opposed Germanization – publishing articles critical of Germany. German attempts to repress its editor Wiktor Kulerski only helped to increase its circulation. From 1898 to 1901, a secret society of Polish students seeking to restore Polish independence operated in the city, but the activists were tried by German courts in 1901, frustrating their efforts.Filomaci Pomorscy: tajne związki młodzieży polskiej na Pomorzu Gdańskim w latach 1830–1920, Jerzy Szews, Polska Akademia Nauk, Instytut Historii Nauki, Oświaty i techniki, Zakład Dziejów Oświaty, 1992 – page 129