Schloss Ochsenburg

Schloss Ochsenburg stands in the municipality of St. Pölten, Austria, and began as a medieval stronghold erected by the local noble family known as the Herren Ochsenburger. The original castle was adapted in the 1500s into a residence built in the Renaissance manner, replacing or reshaping the earlier medieval fabric as part of that transformation.

Control of the site changed several times in the early modern period. The canons’ chapter of St. Pölten held the property between 1383 and 1530. After that interval the Lassberger family owned the estate until 1675, when ownership passed to the Herren von Leisser. In 1699 the St. Pölten chapter purchased the property again during the tenure of Provost Christoph Müller.

At the end of the 17th century the complex saw new building activity. A Baroque wing on the south side was likely added around 1698 under the direction associated with Jakob Prandtauer. The castle’s Nikolaus chapel received a thorough 18th‑century refitting, with the painter Martin Johann Schmidt identified as a central figure in that redecorating campaign.

Administrative and institutional changes followed the imperial reforms of the late 18th century. The St. Pölten chapter was dissolved in 1784 under measures linked to the Josephinian reforms, and the castle was transferred to the Lower Austrian Religions Fund. In 1785 the newly established Diocese of St. Pölten obtained the right to use the property. During the Second World War the complex served as a military hospital and afterwards fell into disrepair. Later repair work restored the building and it became the bishops’ summer residence.

In 2010 the diocese offered Schloss Ochsenburg for sale for roughly three million euros. By the middle of 2011 no buyer had been confirmed and officials announced that the building would be renovated and made available for event rentals while the search for a purchaser continued. Visual records of the site include an engraving made in 1672 by Georg Matthäus Vischer and another image from 1750 by Aquilin Hacker. Today the castle together with the immediately adjacent manor farm to its east are placed under monument protection.