Map - Ciechanów

Ciechanów is a city in north-central Poland. From 1975 to 1998, it was the capital of the Ciechanów Voivodeship. Since 1999, it has been situated in the Masovian Voivodeship. As of December 2021, it has a population of 43,495.

The settlement is first mentioned in a 1065 document by Bolesław II the Bold handing the land over to the church. The medieval gord in Ciechanów numbered approximately 3,000 armed men, and together with the region of Mazovia, it became part of the emerging Polish state in the late 10th century.

In 1254, Ciechanów is mentioned as the seat of a castellany (Rethiborius Castellanus de Techanow (Racibor, Kasztelan Ciechanowa)). In 1400 Janusz I of Czersk granted Ciechanów town privileges. The area eventually become a separate duchy with Casimir I of Warsaw using the title "dominus et heres lub dominus et princeps Ciechanoviensis." In the Middle Ages, the defensive gord of Ciechanów protected northern Mazovia from raids of Lithuanians, Yotvingians, Old Prussians and later, the Teutonic Knights. It is not known when it was granted a town charter. This must have happened before 1475, as a document from that year, issued by Duke Janusz II of Warsaw, states that Ciechanów has a Chełmno town charter.

In the period between the 14th and 16th centuries, Ciechanów prospered with the population reaching 5,000. In the late 14th century, Siemowit III, Duke of Masovia, began construction of a castle, while his son Janusz I of Warsaw invited the Augustinians, who in the mid-15th century began construction of a church and an abbey. The Augustinian Friars were brought to Ciechanów in 1358 by Duke Siemowit III. They experienced the most turbulent times during the Reformation. From the 17th century, the Augustinians’ pastoral presence was growing in the towns. The monastery – characterised by mild observance – was usually inhabited by 4 to 7 monks. It ceased to exist in 1864 when monasteries were dissolved.

In 1526, together with all Mazovia, Ciechanów was incorporated to the Kingdom of Poland. It was a royal city of Poland, the seat of the Land of Ciechanów, a separate administrative unit within the Masovian Voivodeship in the Greater Poland Province of the Polish Crown.

The town was handed over to Bona Sforza, as her dowry. Ciechanów prospered until the Swedish invasion of Poland (1655-1660), when the town was burned and ransacked.

After the second partition of Poland (1793), Ciechanów briefly became seat of a newly created voivodeship. In 1795, it was annexed by the Kingdom of Prussia, and reduced to the status of a provincial town in Przasnysz county. In 1806, during the Napoleonic Wars, Ciechanów was ransacked and destroyed. In 1807 it became part of the short-lived Polish Duchy of Warsaw. Since 1815, the town belonged to Russian-controlled Congress Poland. Its residents actively supported Polish rebellions. In the late 19th century, Ciechanów emerged as a local trade and industry center. In 1864, a brewery was opened, in 1867 it became seat of a county, in 1877 a rail station of the Vistula River Railroad was completed, and in 1882 a sugar refinery was opened. The period of prosperity was short, as during World War I, Ciechanów was almost completely destroyed.

In the Second Polish Republic, Ciechanów remained seat of a county in Warsaw Voivodeship. In 1938, its population was 15,000, and the town was a military garrison, home to the 11th Uhlan Regiment of Marshall Edward Smigly-Rydz.