Alt-Wartburg Ruin: A Medieval Hilltop Castle in Switzerland
Site at a Glance
- Rating
- 4.5
- Popularity
- Low
- Country
- Switzerland
- Primary era
- Medieval
- Eras represented
- Medieval
- Civilizations
- Holy Roman Empire
- Site type
- Military
- Remains
- Castle
On this page5 sections
History
Alt-Wartburg ruin is a medieval hilltop castle in Oftringen, Switzerland, commissioned by the lords of Ifenthal shortly before 1200. It first appears in written records in 1201, when Werner of Ifenthal is also mentioned. Earlier interpretations credited the counts of Frohburg with its construction, but the lords of Ifenthal are now identified as the builders.
Foundation and Expansion
The construction of Alt-Wartburg, followed by the neighboring Neu-Wartburg, probably formed part of the Ifenthal family’s effort to loosen its vassal relationship with the lords of Frohburg. Vassalage was a medieval political and landholding relationship in which a lesser lord owed service or allegiance to a more powerful lord in exchange for protection or rights. Building activity at Alt-Wartburg continued through the thirteenth century, and the castle’s development was complete by 1325.
Later Lords and Destruction
In the mid-fourteenth century, Alt-Wartburg passed to the related lords of Büttikon. They sold the castle to the Hallwyl family in 1379.
Alt-Wartburg was destroyed during the Swiss Confederates’ conquest of Aargau in 1415. The Swiss Confederates were the allied cantons of the Old Swiss Confederacy, and Bernese forces plundered and burned both Wartburg castles during this expansion. The Hallwyl family later rebuilt Neu-Wartburg, while Alt-Wartburg was left to deteriorate as a ruin.
Excavation and restoration of the surviving walls took place in 1966 and 1967. Alt-Wartburg is classified as a Swiss cultural property of national significance.
Remains
Hilltop Castle Ruin
Alt-Wartburg survives as a hilltop castle ruin at 632 metres above sea level on the Säli, a subsidiary peak of the Engelberg chain overlooking the Aare and Wigger valleys. The remains include a residential tower and other excavated wall sections. About 150 metres to the south stands Neu-Wartburg, also known as Sälischlössli, in the municipality of Starrkirch-Wil rather than Oftringen.
The 1966–1967 excavation exposed a fire layer containing smashed fragments of tiled stoves and clay floor slabs from a collapsed floor. These remains preserve physical evidence of the destruction that left the castle in its present ruined form.

