The Church of St. Chrysogonus isnamed after Saint Chrysogonus, the patron saint of the Zadar.
The Romanesque church was consecrated by Lampridius, Archbishop of Zadar, in 1175. Built at the site of a Roman emporium, it replaced the Church of Saint Anthony the Hermit and is the only remaining part of a large medieval Benedictine abbey. In 1387, Elizabeth of Bosnia, the murdered queen dowager of Hungary and Dalmatia, was secretly buried in the church, where her body remained for three years until being moved to the Székesfehérvár Basilica. The construction of a bell tower began in 1485, but was abandoned in 1546 and never finished.
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.