In 1992, archaeological and architectural research began on the former Cistercian abbey of Bierzwnik near Gorzów. Excavations focused on the area once occupied by the nave. The foundations of the western façade have been identified. Further research revealed the foundation of the southern wall and three walls of the northern aisle. Since three sections of walls have been preserved in the current church, it can be concluded that the Cistercian abbey had eight bays. In front of the western façade, the remains of brick foundations were uncovered; they belonged to a house which, based on the pottery found on site, dates back to the early 14th century. Further excavations were carried out in the eastern wing of the abbey, in the chapter house. Their effect was to determine the ground level of the original monastery buildings. Initial excavations also began in the courtyard area, where the foundations of perhaps a house of converts were uncovered. In addition to a number of architectural details, a large amount of ceramics was also discovered during the research.
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