St. Mark's Church (Markuskirche) near the Klaus Gate at the foot of the Mönchsberg is a masterpiece of baroque architecture: the cornerstone for the Ursuline Convent church was laid in 1699. A smaller church located on the same site was destroyed by a disastrous rockfall from the Mönchsberg thirty years before. At the time of its construction, raising a building on the small strip of land between the Mönchsberg and the precipitous banks of the Salzach was a masterly performance.
Archbishop Johann Ernst von Thun called on the renowned architect, Fischer von Erlach, who was also commissioned to design other churches in Salzburg. The church was consecrated in 1705 but the construction of the convent took another two decades. It served as the seat for the Ursuline Order until 1957. Today the former St. Ursuline Church, consecrated to St. Mark the Evangelist, is known by its original name again.
Three saints adorn the church's pediment: St. Mark the Evangelist in the center with St. Augustine and St. Ursula on either side. Visitors are usually stunned by the unexpected richness of the church's interior: elaborate stucco, colorful frescoes by the Tyrolean painter, Christoph Anton Mayr, and the cupola with portrayals of St. Ursula in heaven. The saints on the façade can also be found inside the church. The altar furniture and pews are embellished with fine woodcarving.
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.