Nonnberg Abbey is a Benedictine monastery in Salzburg founded ca. 714 by Saint Rupert of Salzburg. It is the oldest women's religious house in the German-speaking world. Its first abbess was Saint Erentrudis of Salzburg, who was either a niece or a sister of Saint Rupert.
The abbey was independent of the founding house from 987 and was re-built in about 1000. This building was largely destroyed in a fire of 1423. Reconstruction took place between 1464 and 1509.
The nunnery′s church Maria Himmelfahrt is Salzburg′s oldest church dedicated to the holy Virgin Mary and is one of the most significant churches of the city. It was built in late-gothic style with three naves from 1464 to 1506. In 1624 the church was enlarged by the addition of three side chapels. A refurbishment in the Baroque style took place in the 1880s. The church contains a Romanesque crypt that visitors should note, with the tomb of St. Erentrudis. The entrances to the crypt are in the side-naves.
Through Maria Augusta Kutschera, later Maria Augusta von Trapp, who was a postulant in the abbey after World War I and whose life was the basis for the film The Sound of Music, the abbey has acquired international fame. The Mother Abbess during Maria's time at Nonnberg was Sister Virgilia Lütz (1869-1949).
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.