Today, only a ruin remains of Liebenstein Castle, the highest castle on the Middle Rhine dating from the 13th century. The high castle, also called Levenstein, is called “the hostile brothers” together with Sterrenberg Castle 200 meters away. There is a legend behind it, to which there are several versions. The poet Heinrich Heine took it up in his poem “Two Brothers”. The two castles are connected by the Rheinsteig hiking trail on the right bank of the Rhine and in earlier times were fiefdoms of the Lords of Bolanden. Since 2002, Liebenstein Castle has been part of the UNESCO World Heritage Upper Middle Rhine Valley and is officially a protected cultural asset under the Hague Convention.