The abbey was founded in 1327 as a filial monastery of
Stift Heiligenkreuz by the
Habsburg Duke
Otto the Merry, who died here in 1339. Its foundation was to celebrate the birth of Otto's son, Frederick. Upon its founding, it had twelve monks, including the Abbot, Friedrich. The abbey was a center of settlement in the Mürz valley, and its deanery was charged with the pastoral care for Neuberg an der Mürz,
Mürzzuschlag,
Langenwang, and
Krieglach. Construction proceeded rapidly, but due to a mid-14th century plague epidemic, the abbey church would not be finished until the reign of
Frederick III. The
Treaty of Neuberg was signed there in 1397. Neuberg Abbey was suppressed in 1786 by
Emperor Joseph II. The abbey church became a parish church for Neuberg, with the rest of the property becoming property of the Styrian state religious fund. In 1850, the partly ruined premises were converted for use as a hunting lodge for Emperor
Franz Joseph I following the 1848 revocation of exclusive Habsburg hunting rights over the
Vienna Woods. In 1918, the buildings became property of the Austrian state, owned by the Austrian Federal Forestry until 2006. Currently, the abbey buildings are the site of two museums and 50 hotel rooms, also housing several offices. ==Architecture==