Włocławek in the context of "Vistula"

Kuyavia (Polish: Kujawy; Latin: Cuiavia), also referred to as Cujavia, is a historical region in north-central Poland, situated on the left bank of Vistula, as well as east from Noteć River and Lake Gopło. It is divided into three traditional parts: north-western (with the capital in Bydgoszcz, ethnographically distinct), central (the capital in Inowrocław or Kruszwica), and south-eastern (the capital in Włocławek or Brześć Kujawski).

Dobrzyń nad Wisłą (Polish: [ˈdɔbʐɨɲ ˌnad ˈvʲiswɔ̃] ) is a town in the Kuyavian-Pomeranian Voivodeship, in central Poland. It lies on the Vistula River in the vicinity of Włocławek. As of December 2021, the town has a population of 2,025.

The Diocese of Włocławek (Latin: Dioecesis Vladislaviensis) is a Latin Church ecclesiastical territory or diocese of the Catholic Church in Poland. It is a suffragan in the ecclesiastical province of the Metropolitan Archdiocese of Gniezno. Until the 20th century, it was known as the Diocese of Kujawy.

The bishops' seat is Włocławek Cathedral, also a minor basilica: Bazylika Katedralna Wniebowzięcia NMP in the city of Włocławek, in Kujawsko-Pomorskie.
The diocese has two more Minor Basilicas:

The Basilica Cathedral of St. Mary of the Assumption is a large Gothic building situated in the Polish city of Włocławek located near to the Vistula River. Construction on the cathedral began in the 1340s, and it was consecrated in 1411. It was still under construction in the 15th and at the beginning of the 16th century, until its completion in 1526. It is one of the greatest treasure troves of funerary art in Poland next to the cathedrals in Gniezno, Poznań and Kraków.

In the years 1883–1901, the building was heavily regothicised, including exchange of details and elevation of both towers. It is a three-nave temple with a narrower and much lower presbytery. Among the monuments located inside, the following deserve particular attention: stained-glass windows from 1360, the tombstone of bishop Peter of Bnin from 1494, a wooden statue of Our Lady from the early fifteenth century and the painting of the Assumption of the Blessed Virgin Mary by John the Great from around 1480.