Timeline

Heritage classified

Key figures

Origin and history

The dolmens de la Fontaine de Son, also called dolmens de la Fontaine-Desson or the Fontaine Balleron, are located in the commune of Saint-Léger-de-Montbrillais, in the department of Vienna (Nouvelle-Aquitaine). These two monuments, classified as historical monuments by decree of 26 October 1955, belong to the typology of angeline dolmens with portico. Their structure, oriented to the northeast, extends about 7,50 meters in length, with a bedroom measuring 4,80 meters by 2,20 meters. The slabs, in sandstone, include a covered table broken in two parts, supported by three orthostats, while a fourth is overturned. A fifth block, visible under the table, could correspond to the bedside slab.

According to ancient plans, especially those drawn up by Le Touzé de Longuemar in the 19th century, the dolmen was already partially ruined at that time, with a monumental cover table of 6 meters by 4.50 meters, resting on five pillars. No archaeological material has been associated with these dolmens, and their present state remains marked by blocks scattered around the building. Their relative preservation since the 19th century suggests structural stability despite the damage suffered.

The site is referenced in the Mérimée database under the code INSEE 86229, with an approximate location at the address "2 Impasse de Rabate, 86120 Saint-Léger-de-Montbrillais". Although classified, the dolmen does not have precise information about its current accessibility or tourist vocation. The available sources (Wikipedia, Monumentum) confirm its heritage importance in the context of the megalithic monuments of the Poitou-Charentes region, now integrated into New Aquitaine.

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