Sunday 20 September, 14:30

September 2026

Sunday 20
- 14:30 - 17:30

Basilique Notre-Dame-de-Bonne-Garde

9 Place des Combattants, 91310 Longpont-sur-Orge, France

Essonne

Île-de-France

Longpont: a Clunisian site, a Basilica

Name: Longpont: a Clunisian site, a Basilica
Start: 2026-09-20T14:30:00+02:00
End: 2026-09-20T17:30:00+02:00
Location: Basilique Notre-Dame-de-Bonne-Garde

Guided tour

Sunday 20 September, 14:30

Photo club de Longpont©

A Clunisian site in Longpont-sur-Orge. A journey through this heritage with presentation of the Cluniac environment, its priory and its priory farm (from the forecourt of the Basilica).
Walking route (500m round trip) to the site of the battle of Montlhéry and back for the visit of the Basilica Notre-Dame-de-Bon Garde.

September 2026

Sunday 20
- 14:30 - 17:30

Additionnal information

Manifestation

Journées Européennes du Patrimoine

About the location

Basilique Notre-Dame-de-Bonne-Garde

9 Place des Combattants, 91310 Longpont-sur-Orge, France

Essonne

Île-de-France

The church is the only witness of a former Clunisian priory founded before 1061\. In 1031 a church was established by guy 1er de Montlhéry and his wife Hodierne de Gometz on the site of a Marian chapel, probably built as early as the 3rd century on a place of Druidic worship. In 1061 it was given to Cluny with the consent of Geoffrey de Boulogne, bishop of Paris, and monks of this order settled there. The construction of the present church was undertaken at the beginning of the 12th century by guy II Troussel. It ended at the beginning of the 13th century with the facade. The basement of the square tower dates from the 12th century and its only floor from the 13th century. The church was elevated to the rank of basilica in 1913\.

September 2026

Longpont: eine clunizistische Stätte, eine Basilika

Longpont: a Clunisian site, a Basilica

Longpont: un sito cluniacense, una basilica

Longpont : un site Clunisien, une Basilique

Longpont: un sitio cluniacense, una basílica

September 2026