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Origin and history

The church of Saint-Samson de La Roche-Guyon, located in Val-d His patron saint, Saint Samson, and his collator, the abbey of the Trinity of Fécamp, anchor his history in the medieval religious network of the Vexin. Under the Old Regime, the parish depended on the Dean of Meulan and the Archdiocese of Rouen, reflecting the ecclesiastical divisions of the time.

The construction of the present building began in 1404 after the authorization of King Charles VI, but the construction was interrupted by the Hundred Years' War. Reprised in the 16th century, the construction site initially combines a flamboyant Gothic style (dogive vaults, acute arcades) with Renaissance finishes (windows in full hanger, ionic capitals). This stylistic duality illustrates the architectural transition of the region, marked by late recoveries after conflicts.

In the 18th century, the north side was redesigned with the addition of four side chapels, vaulted with ridges and decorated with pilasters of ionic or Corinthian order. These modifications, typical of classical restorations, contrast with the flamboyant elements preserved (lancet windows, carved vault keys). The French Revolution reorganized the diocese, linking La Roche-Guyon to Versailles and Pontoise in 1966. The church, registered as a historical monument in 1926, remains an active place of worship, affiliated with the pastoral sector of the Vexin West.

The building is distinguished by its sober three-shiped plan, a blind bell tower up to the belfry floor, and a western facade decorated with a flamboyant portal and a large Renaissance bay. The pinnacles, decorated with scallop shells or trilobed archatures, highlight the influence of both periods. Inside, the nave, exceptionally high for a rural church, is lit by windows high on the south side, while the narrow lower side serves as a clearing. The classified furniture includes portal vantals of the sixteenth century, a painting of the Adoration of the Magi (Odazzi, XVII–XVIII century), and the partially stolen funeral monument of François de Silly (1637).

The Saint-Samson church thus embodies the historical upheavals of the Vexin, from medieval wars to modern changes, while maintaining a remarkable architectural unity. Its inscription in the heritage and its present role in parish life make it a lasting symbol of local identity.

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