Třebonín, Castle ruin in Lomec, Czech Republic

Třebonín is a vanished castle above the left bank of the Medenický potok, about one kilometre east of Lomec and 750 metres west of Třebonín. Only its terrain remains: a rampart and an arc-shaped ditch cut across the approach side, with a faintly divided plateau behind them, probably shaped by the bedrock.

No written sources mention this small castle, so its origin is unknown. Surface surveys in the 1970s by Zdeněk Smetánka and Jiří Škabrada produced no finds that could date the fortification. The surviving relief corresponds to settlements of the 13th and 14th centuries, and the site is protected as a cultural monument.

No written records mention the site, so its name and story come only from the terrain. The remains lie on a rocky spur above the left bank of the Medenický potok, about one kilometre east of Lomec and 750 metres west of Třebonín. The site is protected as a cultural monument of the Czech Republic.

Sturdy footwear is essential for exploring the uneven terrain and rocky areas safely. Access can be limited during winter months, and parking is available at the base of the hill.

No written records mention the castle. In the 1970s archaeologists Zdeněk Smetánka and Jiří Škabrada surveyed the site but found nothing datable, so its age is inferred only from the surviving terrain.