The eastern tower of Norrsunda stone church was completed in the late 1100s. The nave was extended to the west and the porch and sacristy were built in the late 1400s. The chapel of Sparreska was added in 1633. The red brick chapel was built by Ebba Oxenstierna after her husband Johan Sparre. The tower got its present appearance in the first half of 1800s. The church was restored in 1902 and 1954.
The wall paintings have been created during three periods between the years 1300 and 1450. The pulpit was moved from the Rosersberg Castle chapel to Norrsunda in 1774.
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.