The mendicant order of Augustinian hermits had a monastery in the Augustinerstrasse from 1260 until 1802. The one-aisled church was newly constructed, together with the monastery, from 1768 to 1772. The Diocesan Priests’ Seminary has been located here since 1805. The ornamentation of the church is so rich because patrons generously supported the work: The Elector did not want a “peasants’ church” in his residence city. The façade shows the vivid forms of Main-Franconian baroque and a Coronation of the Virgin by the Mainz sculptor Nikolaus Binterim. In the interior, the painter Johann Baptist Enderle from Donauwörth glorified the life of the Father of the Church, Augustine, in large, bright ceiling frescos. Johann Heinrich Stumm built the divided organ with the centre window in1773; it is one of the few surviving instruments of this dynasty of organ builders.
A lime wood sculpture from 1420 smiles out of a niche between the south side altars: Mary with the Child Jesus playing – an unusual work of Gothic art in its brightness which is assigned to the “soft style”. The highly venerated miraculous image was rescued from the burning Church of Our Lady in 1793. In the high altar is an iconographic rarity: At the death of Christ, God the Father lets “Mankind’s certificate of debt” be torn up by a putto.
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.