Schloss Aschach an der Donau, Renaissance castle in Aschach an der Donau, Austria

Schloss Aschach an der Donau is a Renaissance castle with four wings surrounding a quadratic courtyard. The south side features three stories while the east wing, called Fürstenstöckl, rises two stories and contains ornate rooms including a marble hall and ballrooms.

Built in 1539 on the foundations of a Roman villa, the castle passed to the Harrach family by sale in 1622 and stayed in their hands until 1959, when Alice Countess Harrach, who had married Karl Baron Dreihann-Holenia in 1940, was the last of the line. The Donaukraftwerk AG then owned it and sold it in 1966 to the OÖ Warenvermittlung; the Gerstner family bought the vacant, dilapidated building in 1987 and began a gradual renovation.

The name recalls the Schaunberg, Jörger and Harrach families who held the lordship. In the Fasangarten adjoining the Danube park, hunts were held each year, drawing guests such as Archduke Franz Salvator, Prince Luitpold of Bavaria and Cardinal Prince Schwarzenberg. The castle chapel kept a high altar built from 1712 to a design by Johann Lukas von Hildebrandt until 1961.

The castle stands at the southern edge of Aschach an der Donau, about 25 km west of Linz. The four wings enclose a nearly square courtyard; the south wing's courtyard side has arcades with eleven and a half bays on twelve granite columns. The surrounding English park survives only west of the castle and is privately owned.

An English garden was created on the grounds in 1825 by the Harrach family's gardener and extends partly toward the Danube riverbank. The garden maintains both private and public sections, offering visitors a view of the river from among the landscaped spaces.