Tenczyn Castle

Tenczyn Castle, also known as Tęczyn Castle, is a medieval castle in the village of Rudno in the Polish Jura, Poland. It was built as a seat of the powerful Tęczyński family. The castle fell into disrepair during the Deluge in mid-17th century, after being pillaged and burned by Swedish-Brandenburgian forces looking for the Polish Crown Jewels and rumored treasures of the Tęczyński family. Subsequently rebuilt, it again fell into disrepair after a major fire in the mid-18th century and remains in that state to this day.

The castle stands on the remnants of a Permian period lava stream, the highest hill of Garb Tenczyński (Castle Hill), which is 411 m above the sea level.