Timeline

Heritage classified

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Origin and history

The Château d'Omonville, located in the commune of Le Tremblay-Omonville (Eure, Normandy), dates from the second half of the 18th century. This monument illustrates the rural aristocratic architecture of this period, marked by elegant facades and a landscaped park. Ranked as historical monuments in 1948, it retains decorative elements and outbuildings ( stables, gardener's pavilion) typical of the seigneurial estates of the Ancien Régime.

The commune of Tremblay-Omonville, which emerged from the merger in 1953 of the hamlets of Tremblay and Omonville, reflects a medieval history linked to Norman settlement. The name Omonville comes from the old Norse Osmundr, attesting to a Scandinavian origin. The castle, now owned by the Order of the Rose Cross, houses the Grand Lodge of French-speaking countries, adding a symbolic dimension to its architectural heritage.

The communal territory, marked by a majority agricultural occupation (85% of the land in 2018), is part of a typical plateau landscape in Neubourg. The degraded ocean climate, with wet winters and cool summers, preserved the structure of the castle and its park. The old maps (Cassini, General Staff) show a stability of land use since the 18th century, confirming the historical anchoring of the estate.

Ranked for its facades, roofs, stables and park (including its grids and decorative elements), the castle of Omonville embodies the transition between the modern era and the Lights. Its state of conservation and current use by an initiatory organization make it both a heritage and a living site, rooted in local memory and contemporary spiritual networks.

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