Schloss Hohenaltheim, Baroque château in Hohenaltheim, Germany.

Schloss Hohenaltheim is a baroque residence at the northern entrance of Hohenaltheim in the Donau-Ries district. Its Corps de Logis, about a third of the complex, stands between a cour d'honneur large enough for a carriage to turn and a garden front whose facade loosens into parterre de broderie patterns. Lower side buildings, two Prinzenbauten, a Küchenbau, Reithalle, Orangerie, chapel and Gartensaal complete the ensemble.

Construction began in 1710 under Prince Albrecht Ernst II and took two decades to complete. The Oettingen-Wallerstein family shaped the residence through multiple generations afterward.

The name Hohenaltheim recalls the noble House of Oettingen-Wallerstein, whose seat the castle remains. In October 1777 Wolfgang Amadeus Mozart stayed here and applied unsuccessfully for the post of Kapellmeister. King Friedrich Wilhelm I of Prussia and his son, Crown Prince Friedrich, were also guests.

The whole estate is closed to the public, so the castle can only be viewed from outside. The buildings are best seen during the leafless seasons, when the trees do not block the view.

The 1741 description records two beech avenues and three avenues of espaliered fruit trees, the middle one used for driving through. Around 1800 part of the old garden was merged into an adjoining landscape garden, and in the 19th century the central strip returned to a regular layout.