Pfeffersberg Castle, Medieval castle ruin in Brixen, Italy

Pfeffersberg Castle is a ruin on the western slopes of the Brixen valley, with stone remains showing the foundations of defensive walls and towers. The fragments form a scattered pattern of foundations that reveal where living quarters and defensive structures once stood.

Hermann vom Michaelstor, brother of the ministerialis Albert and founder of the Voitsberg line, built the castle in 1194 on a 740-metre moraine cone; he then called himself von Pfeffersberg. The family died out around 1260 and the castle reverted to the lords of Voitsberg. In the feud between the Voitsbergs and Bishop Bruno it was badly damaged and abandoned, later used by farmers as a quarry. Around 1600 Marx Sittich von Wolkenstein described the fallen tower; until 1830 the bergfried still stood, called the "öden Turm", before students destroyed its remains in the mid-19th century.

The ruins show how medieval builders constructed their fortifications with stone techniques still visible in the remaining walls. This type of stronghold was common in the region and played an important role in controlling the valley below.

The ruin can be reached by marked hiking trails starting from Brixen, with several routes offering different difficulty levels. Sturdy footwear and time for climbing are recommended, especially during wet weather.

The ring wall, about 3 m high and 1.20 m thick, is visible from far off and is often mistaken for a vineyard wall. Marx Sittich von Wolkenstein noted around 1600 that the ruin had its own small court, called Pfeferwurg, later subject to Brixen. Until 1830 the keep still stood, earning the site the name "ödes Turm".