300px|thumb|right|The counter-castle of Katz Castle|Katz
300px|thumb|right|The counter-castle of Katz Castle|Katz
Counter-castles were built in the Middle Ages to counter the power of a hostile neighbour or as a siege castle, that is, a fortified base from which attacks could be launched on a nearby enemy castle.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).