Château de Mongaillard dans le Lot-et-Garonne

Timeline

Key figures

Origin and history

The castle of Mongaillard stands on the commune of Montgaillard-en-Albret, in the department of Lot-et-Garonne. Dated by some 12th century historians and others from the 13th century, it presents a homogeneous Romanesque architecture, typical of the buildings of the South-West of this time. Its strategic position allows it to dominate the road from Xaintrailles to Vianne, emphasizing its defensive role and territorial control.

In 1259, three noble families – those of Astaffort, Padern and Gontaud – owned property in Mongaillard. The castle was then divided among several lords, reflecting feudal practices of the time. Vianne de Gontaut-Biron, daughter of Vital de Gontaut who had been sworn in to King Louis IX in 1243, was a prominent figure. She gave her share of the fief to her nephew Jourdain de l'Isle in 1275, before dying in 1281 in a Dominican convent in Condom which she had helped finance.

In 1287, Jourdain de l'Isle paid tribute to Mongaillard to King Edward I of England, illustrating the complex links between the local nobility and the French and English royal powers. On that date, the fief was shared with Bernard de Saint-Loup, Antoine de Pouy and Guillaume-Arnaud de Padern, but only Jourdain de l'Isle was held in the service of ost for Mongaillard. The castle, a witness to these feudal dynamics, was finally inscribed in historical monuments on 7 January 1926.

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