Lilienfeld Abbey was founded in 1202 by Leopold VI, Duke of Austria and Styria, as a daughter house of Heiligenkreuz Abbey. Successive abbots acted as councillors to the rulers of Austria, and the abbey became wealthy as a result of this valuable connection.
Abbot Matthew Kollweis (1650-1695) turned the monastery into a fortress during the Turkish advance against Vienna in 1683, installing a garrison and giving shelter to a large number of fugitives.
In the 17th century the medieval buildings were extended by Baroque additions. In the first half of the 18th century the tower, library and church interior and furnishings were also refurbished in the Baroque style.
The abbey was suppressed by Emperor Joseph II in 1789, but although the library, archives and portable valuables were removed, on the death of Joseph II it was reopened by Emperor Leopold II as early as 1790.
In 1810 much of the abbey was destroyed in a fire, but was rebuilt under Abbot Johann Ladislaus Pyrker, who later became the Patriarch of Venice (1820-26) and eventually Archbishop of Eger.
As part of his endowment, Duke Leopold VI, Duke of Austria, granted the Abbey lands in and around Pfaffstätten, between Baden and Gumpoldskirchen, upon which the monks erected a walled estate. This estate, the Lilienfelderhof, comprising a gothic church, manor house, and numerous other buildings, was acquired in 2006 by the Kartause Gaming Private Foundation via a 99-year leasehold. The property and its vineyards are currently in the process of being restored and revitalised.
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.