Timeline

Heritage classified

Key figures

Origin and history

The Tronval dolmen, located in Plobannialec-Lesconil in Finistère, is part of a megalithic ensemble dated from Neolithic. It is close to the site of Quélarn, about 100 meters to the southeast, and 400 meters from the menhir of Quélarn, bordering the municipality of Treffiagat. Accessible by a path from the road to Quélarn, it is visible in a forested clearing. This dolmen, now partially collapsed, was initially described as a set of two large dolmens, accompanied by two close menhirs.

The first written mention of the site dates back to Armand René du Châtellier in the 19th century, although its description combines the Tronval dolmen and the nearby megalithic ensemble of Quélarn. This confusion is due to their geographical proximity and the absence of a specific place name. Both sites were classified as historical monuments in 1920 and 1921, but Pierre-Roland Giot, having searched Quélarn, attributed the date of June 10, 1920 to the latter, leaving August 26, 1921 for the Dolmen de Tronval.

Originally, the Tronval Dolmen consisted of two imposing structures, with tables up to 3.10 metres long. Today, a single dolmen remains, its table resting on three orthostats and a side slab. The associated menhirs, reported by Châtellier, were located 150 metres north and 400 metres west. These remains illustrate the architectural and ritual practices of Neolithic in Brittany, a period marked by the emergence of collective funeral monuments.

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