Timeline

Heritage classified

Key figures

Origin and history

The domain of Troérin, located in Plouvorn in Finistère, finds its origins in a mansion attested from 1413, rebuilt in 1653 by Charles de Troérin. This primitive mansion, with its austere house body, preserves a wing bearing its original architecture. Major transformations took place in the 18th century, marked by the intervention of engineer Isaac Robelin in 1717. The latter designs an ambitious plan including terraces, a floor, a vegetable garden, and a large rectangular basin serving as a water mirror. Local streams are diverted to power the house, irrigate the gardens, and operate a mill, illustrating a sophisticated hydraulic mastery for the time.

In 1768 Corentine de Troérin, who became Mme de La Tullaye, inherited the estate. In 1815 his daughter Henriette and her husband Charles de Réals began the construction of the present castle, a two-storey building preserving the 17th century wing. The 18th-century façade is built in a local schist. The estate, registered as a historic monument in 2009, protects not only the manor house and its roofs, but also the entire park, terraced gardens, its hydraulic system (channels, basin, pool, washhouse), and a dovecote. These elements reflect the architectural and landscape evolution of the site, from medieval origins to its classical amenities.

The history of the estate is also related to local figures, such as Charles de Troérin, reconstructor of the mansion in 1653, and Isaac Robelin, master of hydraulic and landscape developments in 1717. The site thus embodies the transitions between seigneurial manor, aristocratic residence, and protected heritage, while preserving traces of its agricultural and industrial use (moulin, pool). Its recent listing highlights the historical and technical value of this set, characteristic of the major areas of Brittany

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