Alunda Church originates from the 1200s and it was enlarged in 1400s. It was badly damaged by fire in 1542 and 1715. The ruins were left to decay until the reconstruction made in 1780-1787. The font is the main item of inventory retained from medieval times. There are also the remains of medieval frescoes made in 1465. The altarpiece is from 1862 painted by Johan Zacharius Blackstadius.
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.