Isère
Isère ( , ; ; , ) is a landlocked Departments of France, department in the southeastern French Regions of France, region of Auvergne-Rhône-Alpes. Named after the river Isère (river), Isère, it had a population of 1,271,166 in 2019.
France
France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlan ...
Marian apparition
A Marian apparition is a reported supernatural appearance of Mary, the mother of Jesus. While sometimes described as a type of vision, apparitions are generally regarded as external manifestations, whereas visions are more often understood as ...
that took place in 1657. A church was built on the site of the apparition and completed in 1858. It became a
Basilica
In Ancient Roman architecture, a basilica (Greek Basiliké) was a large public building with multiple functions that was typically built alongside the town's forum. The basilica was in the Latin West equivalent to a stoa in the Greek Eas ...
following a
decree
A decree is a law, legal proclamation, usually issued by a head of state, judge, monarch, royal figure, or other relevant Authority, authorities, according to certain procedures. These procedures are usually defined by the constitution, Legislativ ...
by
Pope Pius XI
Pope Pius XI (; born Ambrogio Damiano Achille Ratti, ; 31 May 1857 – 10 February 1939) was head of the Catholic Church from 6 February 1922 until his death in February 1939. He was also the first sovereign of the Vatican City State u ...
on 9 September 1924. Pilgrimages to the apparition site were very popular during the 19th century and the first half of the 20th century but declined in the past decades. A house of the
Missionary Oblates of Mary Immaculate
The Missionary Oblates of Mary Immaculate (OMI) is a missionary religious congregation in the Catholic Church. It was founded on January 25, 1816, by Eugène de Mazenod, a French priest later recognized as a Catholic saint. The congregation wa ...
was established in the commune in 1834 and ceased activity in 1997. Up to 11 hotels were active in the town, welcoming pilgrims and tourists, but the last one closed down in 2001, the pilgrimage attracting less and less crowds.
Notre-Dame-de-l'Osier was a part of the neighboring commune of Vinay until it became an independent commune on 4 September 1869.