Härnösand city's first church was built 1593. In 1721 the church was burned down by Russian troops, and a new church was erected, and that church was eventually destroyed. The present church was completed in 1846 and built according to plans by John Hawerman. The present church is located in the same location as the original and is Sweden's smallest cathedral.
The altar painting is by David von Coln. The organ was built in 1975 by the Danish firm of Bruno Christenssen and has 57 stops. The organ facade is from the 1700s Cahman organ that was saved from the original church. The baptismal font is a Spanish rococo work in silver and manufactured 1777.
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.