The post-Franciscan Church of the Assumption of the Blessed Virgin Mary, erected in the second half of the 14th century, is one of the most outstanding artistic and architectural achievements of sacral architecture in Poland. In the 14th century it was the highest hall church in Central Europe with the naves and aisles 26.8 metre high. The church provided inspiration for the extension of St. Johns’ Church in Toruń and St. Mary’s Church in Gdańsk in the 15th century. According to the Franciscan rule, the church does not have a tower but three rather small ave-bell towers instead. The church and the cloister remained in Franciscan hands up to the Reformation period, i.e. up to 1559. The cloister, which was the oldest and most significant in the whole of the Teutonic state, was the residence of the Prussian custos. Here during the synod of 1243 a papal bull was announced dividing the Teutonic state into four dioceses.
References:The Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.