In the 11th century, a certain Guerlenc, Count of Corbeil (Parisian region) tried to seize abbatial property, then fell seriously ill. He prayed for recovery, and since his prayer was granted, he converted and commissioned a wooden statue of the Virgin from the sculptor Rumolde.
On July 10, 1068, the sculptor heard someone calling him out of his studio. He went to see who it was but couldn’t find anyone. Returning to his work, he discovered that the statue was finished! This statue was at first called the Virgin "Achyropoulete" ("Not made by man's hand"), then “Our Lady of Miracles,” the name that is still hers today. Her intercession has obtained many miracles for those who pray to her.
The pilgrimage to Our Lady of Miracles of Saint-Maur-des-Fossés (Val-de-Marne) was interrupted in 1968, until the 1990s. In its day it was as important as Lourdes is today! The official pilgrimage now takes place in December, on the Saturday preceding the feast of the Immaculate Conception on December 8th. Recent miracles have been reported since the year 2000.
Source: "Diocesan Pilgrimage Our Lady of Miracles" Booklet (Edited by Infocap for the diocese of Créteil)