Branzoll Castle, Medieval castle in Klausen, South Tyrol, Italy

Branzoll is a medieval stone castle on the southern slope of Mount Säben, built with a distinctive bell tower and a fortified courtyard structure. The building still shapes the landscape with its characteristic hilltop position overlooking the valley.

Branzoll was built in 1255 by Heinrich and Burchard von Säben during a dispute with Bishop Bruno von Kirchberg, at the entrance to the episcopal castle on Mount Säben. In 1304 Reimprecht and Paul von Säben submitted to Bishop Johann Sax von Saxenau and renounced all claims to Mount Säben. A fire in 1671 reduced the castle to its bergfried and the foundations of the palas.

The castle's name comes from the Lords of Branzoll, and its bergfried is still called Burghauptmannsturm after the captains of Säben who resided here from 1533 to 1671. The painter Hugo Atzwanger supplied watercolour sketches for Franz Linter's rebuild, and the poet Karl Traut, who bought the half-finished site in 1912, moved in the following year.

The castle is in private ownership and not open to the public. Visitors can view the exterior from the town of Klausen below, where the over 20-meter bergfried and the curtain wall with battlements are visible. The outer bailey now serves as a garden.

The castle's tower served as the model for Castle Blackmoor in Blackmoor, the first fantasy roleplaying campaign setting, created by Dave Arneson. A kit model of Branzoll represented the titular castle.