St. Mary’s Church in Krakow
3D model – photogrammetry
Model created by: Atlas 3D – Photogrammetry Poland
St. Mary’s Basilica (the Archpresbyterial Church of the Assumption of the Blessed Virgin Mary) is one of the most famous monuments in Kraków and the city’s most important church after Wawel Cathedral. The soaring towers of this Gothic temple dominate the Main Market Square, concealing within them the priceless late-Gothic altarpiece by Veit Stoss. The church’s history dates back to the early 13th century and includes numerous reconstructions and conservation efforts, thanks to which it continues to impress with its architectural beauty to this day.
History of the Church
Medieval Origins: According to the chronicler Jan Długosz, the first brick church on this site was founded around 1221–1222 by Bishop Iwo Odrowąż – it was a Romanesque temple that was soon destroyed during the Tatar invasions. At the end of the 13th century, the construction of a new, Gothic church began. Between 1290 and 1300, a spacious hall church was erected, partly on the old foundations, and consecrated around 1320. This was St. Mary’s Church in its Gothic form, which was continuously expanded and embellished in the following centuries.
Gothic Expansion: In the mid-14th century—thanks to a donation from the wealthy burgher Mikołaj Wierzynek—the current, elongated chancel covered with a star vault was built. Between 1392 and 1397, to better illuminate the interior, master Mikołaj Werner lowered the walls of the side aisles and introduced high windows, changing the church’s layout from a hall church to a basilica. In 1443, Kraków was hit by a particularly strong earthquake, which caused the church’s vault to collapse. The temple was soon rebuilt, and in the first half of the 15th century, a series of side chapels were added along the aisles. Around the same time, the taller, northern tower of the church was raised and adapted to serve as a city watchtower. This very tower—known as the Hejnalica—received its characteristic Gothic spire in 1478, designed by the carpenter Maciej Heringkan, and in 1666, it was topped with a gilded crown with a diameter of 2.4 meters. At the end of the 15th century, the church acquired its most famous work of art: the monumental St. Mary’s Altarpiece, carved between 1477 and 1489 by Veit Stoss. This impressive pentaptych, measuring approximately 13 meters in height and 11 meters in width, is considered the largest Gothic altarpiece in Europe.
Modern-Era Changes: In the early modern period, St. Mary’s Church continued to serve as the main parish church for Kraków’s patriciate. The 18th century brought further significant changes—between 1750 and 1770, Archpriest Jacek Łopacki commissioned the rebuilding of the interior in the Baroque style. New altars were created, and the walls were covered with rich polychrome murals by Andrzej Radwański. The Baroque porch (narthex) added to the west side also dates from this period. At the end of the 18th century, in 1795, as part of an organization effort by the Austrian authorities, the parish cemetery was closed. The current St. Mary’s Square was established in its place, and some of the old epitaphs were embedded in the church’s exterior walls.
Recent Times: At the end of the 19th century, a decision was made to restore the church’s Gothic character. Between 1887 and 1891, a comprehensive neo-Gothic restoration was carried out under the direction of architect Tadeusz Stryjeński. It was then that the famous painter Jan Matejko designed a new painted decoration for the interior—the vault was covered with a blue polychrome imitating a starry sky, and the walls were adorned with ornamental and heraldic paintings, into which figures of angels and prayer inscriptions were incorporated. The turbulent events of the 20th century did not spare the church. During World War II, the temple suffered serious losses, and some of its works of art (including paintings) looted by the German occupiers have not been recovered to this day. However, the most valuable altarpiece by Veit Stoss was saved: just before the war broke out, the altar figures were dismantled and hidden, but the Germans tracked them down and took them to Nuremberg. After the war, the monument was recovered; in 1946, it returned to Poland, and after conservation, it was returned to its place in the church in 1957. Since the 1990s, St. Mary’s Basilica has undergone systematic conservation work. Today, St. Mary’s Church is one of the most valuable monuments of Kraków’s cultural heritage, inscribed along with the historic city center on the UNESCO World Heritage List.
Facts and Curiosities about the Church
- The Unequal Towers and the Brothers’ Legend: The facade of St. Mary’s Church has two towers of different heights. According to a bloody legend from the time of Prince Bolesław the Chaste, the construction of these towers was carried out by two brothers. When the younger brother realized that his tower was rising more slowly, he murdered the elder one with a knife out of jealousy. Tormented by remorse, he committed suicide by throwing himself from the unfinished tower on the day of the church’s consecration. The alleged murder weapon hangs in the Cloth Hall (Sukiennice) to this day as a memento. The actual reason for the height difference is unknown; the taller (northern) tower served as a defensive and observation post for the city, while the lower one housed the church bells (including one called the Półzygmunt).
- St. Mary’s Trumpet Call (The Hejnał): From the taller tower, the famous St. Mary’s Trumpet Call is played every hour, a melodic trumpet signal echoing to the four corners of the world. The call breaks off unexpectedly in the middle of the melody. According to legend, this commemorates the Tatar invasion of 1241, when a watchman on the tower warned the city’s inhabitants of the approaching enemy with his trumpet. The legend says that while he was playing, a Tatar arrow pierced the trumpeter’s throat, causing the melody to stop abruptly. To commemorate this event, no rendition of the Hejnał is ever played to completion. Every day at noon, the trumpet call from St. Mary’s tower is broadcast live by the Polish Radio Program I—a tradition that has continued uninterrupted since 1927.
- The Malefactors’ Chapel: In the north aisle of the church is the Chapel of St. Anthony, which in the past served an unusual function. It is sometimes called the Malefactors’ Chapel because, during the Middle Ages and the Renaissance, convicts were held there before their execution. Criminals sentenced to death would spend their last night there before the sentence was carried out. This unusual use of the chapel was related to the fact that St. Mary’s Church served as the city’s main parish church, central to the life of the entire community of Kraków.
- The Wartime Fate of the Altarpiece: During World War II, the occupiers looted many works of art from St. Mary’s Basilica. Fearing air raids, the figures from the Veit Stoss Altarpiece were dismantled and evacuated to the countryside as early as September 1939. Unfortunately, the Germans discovered their hiding places and transported the priceless altarpiece to Nuremberg. After the war, thanks to the efforts of Polish museologists (including Prof. Karol Estreicher), all elements of the altarpiece were found. They returned to Kraków in 1946, and after conservation at the Wawel Museum, the altarpiece was reinstalled in St. Mary’s Church in 1957. To this day, however, the basilica is still searching for other lost artifacts looted during the war years.
3D Model
Digital Reconstruction: The presented three-dimensional model of St. Mary’s Church was created using photogrammetry based on over 800 photos acquired with a drone and a digital camera. This digital documentation allowed for a faithful representation of the church’s architecture. The 3D model was then significantly simplified in terms of detail and file size to allow for smooth viewing in a web browser. Thanks to this, everyone can admire the structure of the Kraków basilica online, which aligns with the mission of the Atlas 3D project—to popularize and digitally preserve Poland’s architectural heritage.
