Valsery Abbey, Premonstratensian abbey ruins in Cœuvres-et-Valsery, France

Valsery Abbey is a ruined Premonstratensian monastery in Cœuvres-et-Valsery, Aisne. The surviving walls are those of the canons' dormitories and the chapter house, which retains polychrome decoration and floor tiling. The abbey church and cloister, demolished in 1793, lie buried under about two metres of debris. The site also includes the burnt shell of a 19th-century château.

The monastery was founded in 1124 near the Forest of Retz as a Premonstratensian religious center. Its buildings were destroyed during the French Revolution and later suffered additional damage in World War I.

The chapter house shows how the Premonstratensian community decorated their sacred spaces, with painted patterns and architectural details still visible on the remaining walls. These elements reveal the care they took in designing their religious home.

A visit requires some planning since most of the complex lies buried underground and visible structures are sparse. Volunteers from the restoration association guide visitors around the archaeological site regularly and can explain the ongoing excavation work and restoration efforts.

Most of the abbey lies buried roughly two meters below the surface, which archaeologists discovered through surveys that revealed the church and cloister foundations. This depth actually protected the structures from damage and decay over many centuries.