First mention of the parish 1104 (≈ 1104)
Certified under *Sancta Genovefa* in the texts.
1333
Foundation of the Hotel-Dieu
Foundation of the Hotel-Dieu 1333 (≈ 1333)
By Jean d'Osmont and Jeanne de Maignier.
1793
Revolutionary name change
Revolutionary name change 1793 (≈ 1793)
Commune renamed "Montcailloux" during the Revolution.
1835
Separation of Novilliers
Separation of Novilliers 1835 (≈ 1835)
Communal autonomy granted to Novilliers.
1983
Historical Monument
Historical Monument 1983 (≈ 1983)
Registration by order of 10 February.
Aujourd'hui
Aujourd'hui
Aujourd'hui Aujourd'hui (≈ 2025)
Position de référence.
Heritage classified
Church (Case C 739): registration by order of 10 February 1983
Key figures
Jean d'Osmont - Founder of the Hôtel-Dieu
Co-founder with Jeanne de Maignier in 1333.
Jeanne de Maignier - Founder of the Hôtel-Dieu
Wife of Jean d'Osmont, involved in 1333.
Origin and history
The church of Sainte-Geneviève, classified as a Historical Monument since 1983, is a religious building built from the 14th to the 18th century. Located in the department of Oise, in the Hauts-de-France region, it embodies the architectural and spiritual evolution of the commune over centuries. Its listing in the inventory of historic monuments highlights its local and regional heritage importance.
The commune of Sainte-Geneviève, whose history is marked by a varied industrial activity (tabletery, fan making, thermometers), developed around this place of worship. In the Middle Ages, the founding of a Hôtel-Dieu in 1333 by Jean d'Osmont and Jeanne de Maignier, with a chapel dedicated to Saint Hubert, testifies to the religious and charitable anchoring of the locality. The parish, mentioned in 1104 as Sancta Genovefa, reflects an ancient occupation and a structured community organization around the church.
In the 16th century, tensions between Sainte-Geneviève and the hamlet of Novilliers, then dependent on his parish, illustrated the territorial and religious dynamics of the time. These conflicts, exacerbated by questions of royalties and autonomy, led in 1835 to the administrative separation of Novilliers. The church, as a spiritual and social centre, plays a key role in these transformations, while remaining an identity landmark for the genovefains.
The architectural changes of the 17th and 18th centuries are part of a context of renovation and adaptation to liturgical and community needs. Although the source text does not detail the stylistic specificities of the building, its classification in 1983 and its location in the heart of the village (1 Rue du Canton de Beaupreau) confirm its status as emblematic heritage. The absence of nearby streams suggests a construction adapted to local resources, probably of materials available on the picard plateau.
The church is now owned by the municipality, which ensures its preservation. Its immediate environment, marked by progressive urbanization (19.4% of the territory in 2018) and a historic agricultural vocation (60.2% of arable land), reflects the balance between rural heritage and modern development. The map of Cassini (18th century) and the later representations allow to follow the evolution of the village around this central monument.
Finally, the church is part of a changing industrial landscape, where activities such as tabletry (XIXth century) or the manufacture of thermometers (XXth century) have shaped the economic identity of Sainte-Geneviève. Despite the disappearance of many local companies, the religious building remains a symbol of historical continuity, anchored in the daily lives of the 3,505 inhabitants (2023) and in the collective memory of the Land of Thelle.
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