The Tavna Monastery is a Serbian Orthodox monastery located south of the city of Bijeljina in north-eastern Republika Srpska, Bosnia and Herzegovina. The date of its foundation is unknown.
The chronicles of monasteries Tronoša and Peć say it was built by King Stefan Dragutin's sons Vladislav and Urošica. The present monastery church is built in the same place as the original one.
Tavna was damaged in the first years of Ottoman rule, but was restored by the people. This was not the only time the monastery was damaged. It was damaged many times during the Ottoman period and also during World War II. Between 1941-45 Tavna was bombed by the Nazi-affiliated Croat Ustashe but was reconstructed after the 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.