Östra Ryd Church was built around the year 1300 and the nave and vaults were constructed around 1430. The church was rebuilt completely in the 1700s, when the tower was added. The altar screen is made of oak in 1488. The limestone font dates from the mid-1200s and wooden cruficixes from the 1400s. There is also a chapel of Brahe family, added in 1690-1693. They donated lot of valuable inventory to Östra Ryd church, most of them were war trophies from the Thirty Years' War.
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.