Preetz Priory is a former German Benedictine monastery of nuns founded in 1211 by Graf Albrecht of Orlamünde, nephew of King Valdemar II of Denmark. He founded it following a mystical experience which he later recounted happened while he was stalking a deer. After following it into a glen, the deer stood still and he suddenly saw a gleaming cross appear between its antlers. He felt that the site was a holy place which he called the Field of Mary and, to honor the vision, founded a monastery of nuns at a location some 4 km away. A monastery on the actual site of the vision was built only in 1260.
Suppressed in the 16th century due to the Protestant Reformation, it became an aristocratic Lutheran women's convent belonging to the Schleswig-Holstein knighthood. It continues in this capacity.
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.