St. John the Evangelist's Church in Paczków, Poland, is a Gothic church built in the fourteenth-century. The construction began in the year 1350 and lasted around 30 years. The shrine was funded by Bishop of Wrocław Preczlaw of Pogarell, who administered between 1341 and 1376. The present form of the church is in the Renaissance, Baroque and Neo-Gothic architectural styles. In the fifteenth-century, from the chancel's southern side, there was built a spanning chapel, dedicated to Holy Virgin Mary. The tower, partially deconstructed in 1429, was rebuilt in 1462. It was then that the upper condignation was constructed.
References:Sigmaringen Castle was first mentioned in the year 1077 in the chronicles of Petershausen monastery. The oldest parts of the castle are concealed beneath the alterations made during the 17th and the 19th centuries. The secret of the earliest settlement built on this defendable rock will never be fully revealed: large-scale excavation work would be necessary, which the extensive land development renders impossible. Judging from the many Roman remains unearthed in the area around Sigmaringen, the 12th century keep known as the 'Roman Tower' could be traced back to a Roman predecessor.
The castle remains that have been preserved (gate, great hall and keep) date back to the Staufer period around 1200. The castle remains were integrated into subsequent buildings. The foundations of the castle buildings are to a large extent identical to the surrounding castle wall.
These remains give us a good idea of how the castle might have looked during the 12th century.