Färentuna Church was built around the year 1175. The nave was enlarged in the 15th century when the church was under the protection of Karl Knutsson Bonde. The enlargement was made for his daughter’s weddings because the church was too small for all people. The latest notable reconstruction was made in 1732, when the medieval tower was replaced by the present wooden cap.
The pulpit of Färentuna church was made in 1701 as the monument of Carl XII’s victory in Narva battle. The oldest sculpture is a wooden Madonna carved in the 13th century. The runestone fragments U 20 and U 21, made in the 11th century, can be seen in the church wall to the left of the front gate. Together with the Hillersjö stone and the Snottsta and Vreta stones Färentuna runestones tells the story of the family of Gerlög and Inga. All of the Färentuna runestones are inscribed in the younger futhark.
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.