Lienzer Klause, Medieval fortress in Leisach, Austria
Lienzer Klause is a medieval fortress in Leisach positioned on elevated terrain where the Drava River flows through a narrow gorge. The structure features stone walls and defensive elements designed to control passage through the valley.
Built in 1240 by the Bishop of Brixen to counter the Counts of Görz, the fortress secured control of the trade route through the valley. The 17th century brought major reconstruction due to Ottoman expansion threats in the region.
The name refers to the narrow gorge that the fortress guards, reflecting how geography shaped settlement and defense. Visitors can sense how this location controlled passage through the valley for centuries.
The site is best reached via a hiking trail starting from the Leisacher Hof parking area and crossing multiple sections along the valley. Wear sturdy footwear since the terrain is steep and uneven in places.
In the 14th century the fortress operated its own court system granting subjects the right to sell goods outside Lienz without market restrictions. These trading privileges were not abolished until 1806.
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