Initial construction 2e moitié du XVe siècle (≈ 1550)
First phase of the strong house.
2e moitié du XVIe siècle
Expansion or modification
Expansion or modification 2e moitié du XVIe siècle (≈ 1650)
Second major period of work.
2e quart du XVIIe siècle
Last known phase
Last known phase 2e quart du XVIIe siècle (≈ 1737)
Final site layout.
12 octobre 2001
Historical Monument
Historical Monument 12 octobre 2001 (≈ 2001)
Official registration of protected items.
Aujourd'hui
Aujourd'hui
Aujourd'hui Aujourd'hui (≈ 2025)
Position de référence.
Heritage classified
The house and the fortified outbuildings, as well as the moat, in full (Box B 1273 to 1275, 1277, 2187): inscription by order of 12 October 2001
Key figures
Information non disponible - No names cited in the sources
The texts do not mention any characters.
Origin and history
The fort house of the Plessis is a seigneurial building located in Juigné-sur-Loire, in the department of Maine-et-Loire, in the Pays de la Loire region. Built between the second half of the 15th century, the second half of the 16th century and the second quarter of the 17th century, it embodies the evolution of the fortified residences of Anjou, mixing defensive and residential functions. The site consists of two bodies of buildings organized around a courtyard, partially lined with moat, as well as fortified elements such as a gate, ramparts and cannons, reflecting the military concerns of its construction eras.
Listed under the title of historical monuments by order of 12 October 2001, the fortified house of the Plessis sees its protected elements include the house, the fortified outbuildings and the moat in its entirety. This ranking underscores its heritage importance, both for its architecture and for its role in local history. The monument illustrates the transition between the strong medieval houses and the seigneurial residences of the Renaissance, adapted to the needs of a changing angeline nobility.
The location of the Plessis, today in the commune of Garennes sur Loire (after the merger with Juigné-sur-Loire), is part of a territory marked by the presence of the Loire and its historical influence. The moat and defensive systems recall the regional tensions of the 15th-17th centuries, while the structure in closed court evokes the social and economic organization of the seigneuries of the time. The monument, although partially modified over the centuries, retains significant traces of its successive construction phases.
