La Berthiere was one of the most important seigneuries in the region before the Revolution. The lands were divided between the parishes of Plessis, Pellouailles, Villevéque and Corzé. The castle, of which only one wing remains, dates back to the 12th century. The surviving constructions were modified in the 16th and 17th centuries. It was a castle surrounded by moats. This huge building had about forty fens, and one reached it to the west by a drawbridge. At the parish level, the seigneurs had the right of burial in the church of Plessis although they had their own chapel outside the moat.
Guided tour every hour.