Claro abbey was founded in 1490 on the initiative of Scolastica de Vincemalis, a Benedictine religious of Milan who on 13 May 1490 became the establishment's first abbess. The monastery grew rapidly, and by 1516 was home to 16 nuns. In 1559, the religious were charged by decree of Pope Paul IV to relaunch and supervise Seedorf Abbey in the Canton of Uri. Intended for the education of girls, the buildings were enlarged several times during the 17th century, and again in the second half of the 20th 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.