Schloss Fronburg, Heritage château in Morzg, Austria

Schloss Fronburg is a Baroque castle in Salzburg's Morzg district situated at 429 meters elevation on Hellbrunner Allee. The building features geometric ponds and a central fountain basin in its eastern garden.

Built before 1618/19 as a small Stöckl by Johann Georgen von Tullier Freiherr zu Froberg, the estate passed in 1670 to the Counts Kuenburg, who held it until 1960. In 1672 Archbishop Max Gandolf Kuenburg granted land on the Hellbrunnerweg and the new building began that same year. After World War II the US occupation forces confiscated the buildings; Austria acquired the castle in 1960 for the Mozarteum.

The castle now houses the Carl Orff Institute, part of the Mozarteum University. Students of music use the grounds daily, creating a living artistic presence throughout the estate.

The castle is accessed through a 17th-century wrought-iron gate on the western side, flanked by gatekeeper and gardener cottages. The grounds lie on a popular route and are easy to reach, allowing visitors to view the estate from its perimeter.

The 1965 film The Sound of Music used the castle's exterior for the outdoor shots of the von Trapp family villa. The building has belonged to the University Mozarteum since the Republic of Austria bought it in 1960.