thumb|350px|right|Façade with, on left, the square keep Château-Dauphin is a medieval castle in the commune of Pontgibaud in the Puy-de-Dôme département of France.
thumb|350px|right|Façade with, on left, the square keep Château-Dauphin is a medieval castle in the commune of Pontgibaud in the Puy-de-Dôme département of France.
== History == The castle owes its name to the coat of arms of the person who built it in the 12th century: Robert I, Count of Auvergne, on whose arms was a dolphin (dauphin). The original construction was modified in the 15th century by Gilbert III Motier de La Fayette, who strengthened the defences and enlarged the keep. Abandoned in the 17th century for a more comfortable building, and damaged during the French Revolution, the castle was finally restored in the 19th century by Count César III of Pontgibaud.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).