Co-Cathedral Basilica of the Assumption (St Mary's Church)

St. Mary's Church, Gdańsk

The Co-Cathedral Basilica of the Assumption, widely known as St. Mary's Church (Polish: Bazylika Mariacka), is a monumental Roman Catholic church and co-cathedral situated in the heart of Gdańsk, Poland. Its imposing presence and historical significance have earned it the affectionate local title, the "Crown of Gdańsk" (Polish: Korona Gdańska). Completed in 1502, it stands as a preeminent example of Brick Gothic architecture and ranks among the world's largest churches constructed entirely of brick.

History and Construction

Tradition holds that a wooden church dedicated to the Assumption of Mary existed on the site as early as 1243. The foundation stone for the current brick edifice was laid on March 25, 1343. Initial construction from 1343 to 1360 resulted in a basilica with a low turret. The significant expansion and construction of the present church commenced in 1379 under the direction of Danzig architect Heinrich Ungeradin and his team. The design bore similarities to Gothic brick churches in Flanders and the Netherlands, while also showing influences from the mother church of St. Mary's in Lübeck. Work progressed through the 15th century, with the eastern section completed by 1447, the tower heightened between 1452 and 1466, and the main nave core supervised by Hans Brandt. The final stages of construction, including the vaulting, were overseen by Heinrich Haetzl after 1496.

Reformation and Religious Transitions

The church's history is marked by significant religious shifts. During the Reformation, the populace of Danzig largely adopted Lutheranism. Between 1536 and 1572, St. Mary's Church served both Catholic and Lutheran congregations, a testament to a period of dual worship. While Catholic masses were eventually discontinued in other Danzig churches by 1557, they continued at St. Mary's until 1572. A domed side chapel in the Baroque style was erected in the late 17th century for the Kings of Poland and Catholic worship during their visits.

Architectural Features

St. Mary's Church is a triple-aisled hall church with a transept of similar width and height to the main nave. Its exterior is characterized by plain brick walls and tall, narrow pointed arch windows, a construction made possible by internal buttresses and chapels. The interior boasts intricate net vaults in the main nave, transept, and presbytery, and diamond vaults in the aisles. The church is stabilized by strong external buttresses and features seven portals. The interior is adorned with masterpieces of Gothic, Renaissance, and Baroque art, though many significant works, including Hans Memling's "The Last Judgment," have been relocated to museums.

World War II and Reconstruction

St. Mary's Church suffered catastrophic damage during the storming of Danzig by the Red Army in March 1945. The wooden roof was destroyed by fire, numerous vaults collapsed, and the windows were shattered. The intense heat even caused some bricks to melt. Following the war, Gdańsk was repopulated by Poles, and the church was handed over to the Catholic diocese. Reconstruction efforts began in 1946, with the roof rebuilt by 1947. The church was reconsecrated on November 17, 1955. In recognition of its importance, Pope Paul VI elevated the church to the dignity of a basilica on November 20, 1965. Subsequently, on February 2, 1967, it was established as the Co-Cathedral of the Catholic Diocese of Gdańsk, serving alongside Oliwa Cathedral.