Franziskischlössl, 17th-century fortification on Kapuzinerberg hill in Salzburg, Austria

Franziskischlössl is a former defensive structure built in 1629 on the Kapuzinerberg, a single small castle-like building rather than a multi-story fortress. It sits within a fortification system that includes roughly 3 km of walls to the south and east, gun bastions to the west and two gun platforms, the Grosser and Kleiner Linzer Kavalier, on the scarped rock to the north. Its cellar was cut largely out of solid limestone, and an ornate wrought-iron railing from the building period leads into the terrace garden.

Built in 1629 under Archbishop Paris von Lodron, this fortress formed part of Salzburg's defensive network during the Thirty Years' War. It was later transformed into a hunting lodge under Archbishop Max Gandolf von Kuenburg, with gun ports replaced by larger windows for residential use.

The chapel-like Schloss is dedicated to Saint Francis, with the founding wish that peace on the mountain would last forever. Since 1849 a tavern has operated here, interrupted only in the war years; in 2023 it closed and in August 2024 it reopened as "The Castle".

The building now operates as a restaurant serving Austrian regional cuisine, allowing visitors to enjoy the views and architecture while dining. Access is via walking paths that lead up the hillside to reach the elevated location.

The cellar level was cut largely out of solid limestone and keeps its north-side gun embrasures; it is not open to the public. The large rainwater cistern hewn into the rock survives without its stone well rim, and only a short stretch of the western moat, with a bridge that was once a drawbridge, remains.