Schweinsberg Castle

Attinghausen, Switzerland, Switzerland

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Schweinsberg Castle is a fortified medieval residence in Attinghausen, Canton of Uri, Switzerland, built in the late 13th century by the Schweinsberg family, who also controlled nearby Attinghausen Castle and supported the early Swiss Confederacy through key alliances like the 1351 pact with Zurich.

Featuring a robust square tower with an elevated original entrance, inner defensive walls, and surrounding fortifications now largely vanished, it served as a knightly outpost amid the family's rising influence in Uri before abandonment following events around 1360, possibly a fire or conflict.

Recognized as a Swiss heritage site of national significance, the ruins reflect the noble lineage's role in regional power shifts and remain tied to the area's foundational history.