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Origin and history

The Château de Gaïx, located in Valdurenque in the Tarn, finds its origins in an old baronie created in the 12th century by Bernard-Aton IV Trencavel for his wife, Cécile de Provence. This strategic site, mentioned in the 11th century, formed a defensive triangle with the castles of Miraval and Arifat. The excavations revealed tombs of the 10th century around a primitive chapel, attesting to an early feudal occupation.

The Barony of Gaix was an issue during the Albigois Crusade: confiscated from the Trencavel in 1210 for their support of the cathars, she passed to Simon de Montfort, then to her heir Philippe I of Montfort. He donated it before 1251 to Jean de Burlats, a captain involved in local conflicts with the consuls of Castres. The castle then changed hands in 1313, acquired by the Montbrun family, before disappearing from archives for centuries.

In the 17th century, Louis de Cardaillac, heir to the Montbrun, undertook important works to modernize the castel, but his less wealthy successors had to sell the estate. Richard's family, then the Blays of Gaix, became their owners. During the Revolution, the brothers of Blay de Gaix opposed the Republic, causing the destruction of the 16 towers and ramparts in 1798-1799. The Tarn prefecture was then transferred from Castres to Albi in retaliation.

Reconstructed in 1805 in the management style, the castle became a rare example of this architecture in the Tarn. In 1881, Gabriel de Blay de Gaix's marriage with Pauline de Candie Saint-Simon marked a turning point: the estate was enriched with redesigned gardens and restored interior decoration (Louis XV and Empire styles), attracting more than 200 guests, including Napoleon III supporters. In 1944, the castle briefly housed an American OSS team after the liberation of Castres.

Today, the castle of Gaix remains a private property inhabited by the family of Blay de Gaix. Although not open to the public, its management architecture – with its central rotunda, nine spans and dome – is visible from the D612 or the surrounding paths. The site also preserves traces of its medieval past, despite revolutionary destructions.

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