The Gothic church of St. Adalbert originally consisted of a nave on a rectangular plan with dimensions 17.3 x 28.8 meters (interior 15.1 x 26.4 meters, a slightly narrower chancel with a polygonal closure on the eastern side, measuring of 14.5 x 13 meters, and a massive tower on a rectangular plan of 10 x 11.7 meters added to it from the north. Additionally, on the northern side of the nave, the entrance was preceded by a Gothic, two-story porch.
Both the nave and the chancel were reinforced with stepped buttresses, in the corners placed at an angle, crowned with pinnacles. The horizontal division of the church’s façades was formed by plinth, under-window and under-eaves cornices. Additionally, in the chancel under the eaves cornice there was a high plastered frieze, and the windows were originally flanked with plastered shields. In the middle of the north, west and south walls of the nave were made moulded entrance portals.
The lower and middle elevations of the tower received a very austere, fortified appearance, devoid of decorations, with only small windows. Only the upper part of the tower was covered with pilaster strips and blendes, flanking the high, lancet openings of the storey with bells. This contrast ensured that the most decorative part of the tower was visible from a distance, while the most massive lower part could have utility and possibly defensive functions. The tower of the church in Prabuty was to be modeled on the tower at the cathedral in Kwidzyn, slightly taller and more massive, but of a similar form.
Inside, in the ground floor of the tower, there was a sacristy, divided into two bays with a three-support vault, based on corbels, four of which were created in the form of figural representations, one tracery and one was moulded. The chancel was separated from the nave by a high, pointed and moulded arcade. A similarly moulded and pointed portal connected the chancel with the sacristy. The wide space of the nave was not vaulted in the Middle Ages, while the vaults were placed in the chancel.
Despite the multiple damages suffered over the centuries, the church has retained to this day the spatial layout obtained in the Gothic period, although large fragments of the walls (especially in the nave) have been heavily restored. Moreover, the window traceries, pinnacles and partly cornices were destroyed. The upper floor above the porch was probably added in the second half of the 17th century. Inside, no vaults have survived, except for the ground floor of the tower and the northern porch.
Herrmann C., Mittelalterliche Architektur im Preussenland, Petersberg 2007.
Schmid B., Bau-und Kunstdenkmäler des Kreises Rosenberg, Danzig 1906.