Basilica of the Assumption and St Michael in Trzemeszno

From outside you notice the dome first, yet the oldest parts of this church go back to the reign of Duke Bolesław the Wrymouth. The Basilica of the Assumption and St Michael the Archangel in Trzemeszno is a former monastery church of the Canons Regular, where Romanesque columns from the 12th century stand beneath a late Baroque dome modelled on St Peter's in Rome. It makes one of the more rewarding stops on the Piast Trail between Gniezno and Mogilno.

History: from canons to basilica

The church's origins are tied to the Canons Regular, brought to Trzemeszno by Bolesław the Wrymouth. They built a Romanesque church and monastery; after several fires the church was rebuilt in Gothic style on the old foundations, reusing some of the walls. Its present form comes from a long remodelling led by Abbot Michał Kosmowski in 1764–1781. The Latin-cross design is attributed to Efraim Schröger and its execution to Józef Letzelberg. The church was consecrated in 1791, and the Prussian authorities closed the monastery in 1836.

The hardest chapter came in the Second World War. The Germans removed the valuable furnishings and used the church as a military store, and on 21 January 1945, as they left the town, they set it on fire. The dome burned down completely. Rebuilding in the 1950s and 1960s included a careful reconstruction of the interior. In 1969 Pope Paul VI raised the church to the rank of minor basilica.

What to see

• 12th-century Romanesque columns in the western part of the church, and the buttresses at the west towers, typical of Romanesque building.
• A stone tombstone, once set into the floor, now displayed in an exhibition under the organ loft.
• A Gothic star vault surviving from the earlier rebuilding.
• The octagon and dome, with four oval medallions showing biblical scenes, including the sacrifice of Isaac and the offering of Melchizedek.
• The Assumption painting in the chancel apse, by Franciszek Smuglewicz.
• Nave paintings telling the story of St Adalbert (Wojciech): his martyrdom, the ransoming of his body from the Prussians and its burial by the canons of Trzemeszno.

Did you know?

The post-war wall paintings were recreated by Ewa and Jerzy Wolski, and the altar painting of the Virgin was reconstructed by Zofia Wilińska. In 2018 the dome structure was strengthened, the apse and chancel were restored and the altar was moved closer to the congregation. From 1737, under the Concordat of Wschowa, Polish kings had the right to appoint commendatory abbots here, which made Trzemeszno a prize for the royal court. Next to the basilica stands the restored former abbot's palace, now the parish house.

Tripto tip

The basilica is a working parish church on Plac Kosmowskiego, so visit between services; the parish website lists the current mass times. Allow 30–45 minutes for the interior. Start at the west end under the organ loft, where the Romanesque remains are, and only then walk under the dome: the contrast between the 12th and 18th centuries is most striking that way. Combine it with a walk around the town centre and the former Alumnat building; Gniezno is about 20 km away.