Träkumla stone church was preceded by a wooden church on the same site. The oldest part of the now visible church at Träkumla is the rectangular choir, which was built at the middle of the 13th century. The nave was added slightly later. The church was intended to have a tower; thick walls at the western end of the nave indicate that preparations were made for the erection of a tower, but it was never executed. The presently visible wooden spire dates instead from 1917. An inscription above the main portal, now lost, stated that the church was inaugurated on 1 September 1287.The church was abandoned in 1868 but restored in 1917 and 1951.
Inside, the church is decorated with frescos made by the Master of the Passion of Christ in mid-15th century. They depict scenes from the legend about Saint Olaf. The church houses a number of medieval items. The baptismal font is from the 12th century and probably belonged to the first, wooden church. There is also a triumphal cross, a processional cross and a Madonna, all from the 15th century, as well as a few stained glass window panes dating from the 13th century. The wooden door is furthermore medieval. The altarpiece was assembled in the 17th century and is made of pieces from several earlier, medieval altarpieces. The pulpit dates from the 17th century.
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.