En un regard
Le château en bref
The ruin of the Weißenburg lies near Weisweil, in the municipality of Klettgau (Landkreis Waldshut), on a small hill of about 410 m, isolated in the middle of a valley that was once marshy and that the Seegraben stream, a tributary of the Schwarzbach, still skirts. This location made it difficult to reach, except from the north-west, where the Lunzihof, also known as the Burgstallhof, stands. Counted among the oldest castles in the Klettgau, it appears in a charter of 29 October 1023 concerning a donation by Emperor Henry II to the abbey of Rheinau, which is said to have built it in the eleventh century. The lords of Weißenburg exercised the advocacy of the monastery there, followed by the counts of Lenzburg around 1173, and finally the barons of Krenkingen, who occupied it around 1196–1209. A branch of this family, known as that of Weißenburg, administered its estates from this castle. Their disputes with Rheinau provoked the intervention of the Habsburgs: in 1288, after a siege of several weeks, the fortress was destroyed by undermining and was never rebuilt. Only a few remnants of walls and the line of the enclosure remain. It should not be confused with the Weißenburg in the Steina valley (Roggenbach Castle).