Château de l'Ébaupinay, Medieval fortress in Argentonnay, France.

Château de l'Ébaupinay is a fortified residence in Argentonnay featuring five defensive towers positioned at the corners and center of its facade. The structure is surrounded by water-filled moats and stands within grounds that accommodate multiple residential buildings.

Built in the 15th century by the lord of Vendel, owner of the castle and its domain, the building was long said to have been destroyed by a fire set in January 1794 by the Grignon column. Architect Stéphane Berhault instead attributes its ruin to dismantling, as old interior plaster survives on the top floor. It was classified as a Monument historique in 1898.

The name Ébaupinay also appears as Ébaupinaye in older records. The castle's five hectares of land and its courtyard, once holding the outbuildings and a dismantled gate, now host a working brewery: beer is brewed in the courtyard, and gîtes and a reception room are planned for 2026.

The moats still hold water on the north and east sides, so approach from those directions to see the castle reflected in them. The courtyard, once holding the outbuildings and a now-dismantled gate, is where a brewery now operates. The site is a ruin without floors or roof framing, so walking surfaces are uneven.

The 2019 Dartagnans crowdfunding campaign drew 11,000 contributors who put in €1,200,000, but the château was resold in 2024 for under €650,000, leaving them out of pocket. A couple bought it in February 2025; a brewery now operates in the courtyard, with gîtes and a reception room planned for 2026.