Timeline

Key figures

Origin and history

The castle of Oudon is a fortified building built between the late 14th and early 15th centuries on the remains of an ancient 11th century fortress. Located on a rocky spur overlooking the Loire, near the former Franco-Breton border, it was part of the defensive system of the Duchy of Brittany before its attachment to France in 1491. Its 32.5 metre dungeon, inspired by Breton fortresses like Largoët but decorated with motifs reminiscent of the Loire castles, symbolizes this dual architectural influence. The thick walls and decorated mâchicoulis testify to its military and residential vocation.

The seigneury of Oudon, often disputed because of its strategic position, passes into the hands of influential Breton families. In 1392, Alain de Malestroit obtained permission from the Duke John IV of Brittany to rebuild the castle, in exchange for the destruction of the fortress of Vieille-Court. In the 15th century, the enclosure was enlarged with towers and courtines, while in the 16th century, reshuffles completed the western courtine, incorporating an 11th century vestige. The castle was briefly besieged in 1526 by the troops of Francis I to arrest the lords of Malestroit, guilty of forgery and murder.

After the confiscation by the crown in 1526, the castle changed hands several times: bought by Anne de Montmorency in 1553, he even welcomed King Charles IX in 1565. In the 17th century, he entered the house of Condé but fell into disuse. During the Revolution, it was sold as a national good and partially dismantled for its materials. Ranked a historic monument in 1866, it was restored in the 19th century, then between 1974 and 1984, where its dungeon was consolidated and made accessible. Today, it illustrates the evolution of fortifications between the Middle Ages and the Renaissance.

The castle is built in schist and gneiss, with tuffle chains, typical of local resources. Its dungeon, surrounded by an enclosure preserving two medieval drawbridges, dominates a site where remains of the 11th and 15th centuries remains. The moat and ramparts, partially disappeared, recall its role as a military lock on the Loire. The successive restorations preserved this witness of the conflicts between Brittany and France, as well as the architectural transformations associated with its transition from a defensive function to a seigneurial residence.

The excavations and historical studies reveal that the site underwent several sieges before the 14th century, notably by Henri II Plantagenet (1147) and Jean sans Terre (1214), then by Saint Louis (1230 and 1234). These assaults underline its importance in controlling the tracks between Nantes and Angers. The seigneury, transmitted by marriage alliances (in particular via the Châteaugiron and Malestroit), reflects the political strategies of the Breton families. After 1491, the castle lost its military role but remained a symbol of seigneurial power, before becoming a heritage issue from the 19th century.

External links