Motte médiévale dite du Plessis-Saint-Rémy
FortressHidden Treasure
Éminence terreuse du XIe siècle veillant sur la vallée de l'Avre, la motte du Plessis-Saint-Rémy est l'un des rares témoins intacts de l'architecture militaire normande aux marches de l'Île-de-France.
© Wikimedia Commons
History
On the edge of the Eure-et-Loir département, where the Avre valley marks the historic border between Normandy and the Capetian domain, stands the medieval motte of Plessis-Saint-Rémy. This artificial mound, fashioned by human hands in the Middle Ages, belongs to the family of defensive structures that historians call "motte castrale" - earthen and wooden structures erected as a matter of urgency to control a territory, watch over a ford or assert seigneurial domination. What sets the motte du Plessis apart is its exceptional topographical integrity. Where so many other similar mounds have been levelled by ploughing or swallowed up by urban development, this one has retained its characteristic profile: a truncated cone-shaped mass rising sharply above the surrounding plain, surrounded by ditches that are partially visible in the landscape. From the summit, you can still see the strategic intelligence of its builders: you can see a wide arc of the valley, controlling the passages to the Avre. The experience of visiting the site is one of landscape archaeology. There are no carved stones or ogival arches here: the earth itself is the monument. To climb the slopes of the motte is to set foot where knights and watchmen stood almost a thousand years ago, scanning the horizon for the approach of an enemy or the arrival of a courier. The sobriety of the site is an invitation to meditate on history. The site is set in an unspoilt rural environment, punctuated by hedged farmland and wet meadows typical of the Avre valley. The low-angled light of an autumn morning or the mists of November give the site all its medieval dimension. Photographers and archaeology enthusiasts will find plenty of material for long hours of exploration.
Architecture
The motte at Plessis-Saint-Rémy is a pure earthwork, typical of early feudal fortifications. It takes the form of an artificial mound, roughly circular in plan, estimated to be between five and ten metres high above the surrounding ground, with a base diameter probably in excess of forty metres. The steeply sloping sides made a direct assault particularly dangerous for an attacker on foot or horseback. At its foot ran one or more ditches, now partially filled in, which amplified the effect of the height and formed an initial defensive obstacle. The top of the motte once supported a wooden tower - a timber "keep" - resting on a flattened platform. No masonry remains have been identified on the surface, which confirms that the eventual transition to stone did not take place here, unlike some contemporary mottes whose wood constructions were replaced by limestone or flint towers during the 12th-13th centuries. The materials used were those of the land: the clay-loam soil of the Avre valley, compacted in successive layers, a technique that is attested to on many Norman sites. The bailey, the enclosed area that adjoined the motte and formed its functional complement, is still partially visible in today's plot of land. The motte-basse-cour ensemble represents the minimum castral unit of the period, an architectural vocabulary whose same principles can be found from Caen to Hastings and from Falaise to Saint-Rémy-sur-Avre.
Related Figures
Seigneur local anonyme du XIe siècle, fondateur probable de la motte et premier détenteur du fief du PlessisComtes de Chartres (maison de Blois), suzerains de la région aux Xe-XIe siècles, dans le giron desquels s'inscrit probablement la constructionDucs de Normandie, dont l'expansion territoriale vers le sud a conditionné la nécessité de telles fortifications frontalièresPhilippe II Auguste, roi de France, dont la conquête de la Normandie en 1204 a redéfini le statut stratégique de la vallée de l'AvreÉrudits de la Société archéologique d'Eure-et-Loir (XIXe siècle), premiers inventoriants de la motte dans la littérature savante régionale
