The Parish of St. Stanislaus the Bishop and Martyr and St. Anne in Knychówek, belonging to the Drohiczyn Diocese, has a rich history dating back to the 15th century. Its origins are associated with the foundation of a wooden church by Stanisław Korczewski and his mother Kordula, and the first efforts to establish an independent parish took place in 1493, when Grand Duke of Lithuania Alexander Jagiellon resolved a dispute over tithes in favor of Korczewski. In 1631, construction began on the present brick church, which was completed in 1668. The church, designed in a transitional style between Gothic and Renaissance, was consecrated in 1733 by Fr. Józef Olszański. In the 18th century, foundations and expansions for the parish were continued by successive owners, such as Krzysztof Wiesiołowski and Wiktoryn Kuczyński, who commissioned the altar. After the Third Partition of Poland, the parish's ecclesiastical affiliation changed, moving from the Lutsk Diocese through the Lublin Diocese to the Janów Diocese, and then returning to the Siedlce Diocese after World War I. The parish today has about 2,800 faithful and includes a number of localities, including Knychówek, Korczew, and Nowy Bartków. In the 1990s, local church institutions were modernized, including the construction of a rectory. The parish has deep roots in the history of the region, its development reflects the changing fortunes of Poland, as well as the evolution of sacred architecture in the area.