The earliest stable cults of the dark Virgin emerge in the eighth to tenth centuries, in monasteries and pilgrimage churches strung along the Mediterranean and the early Roman roads. By the eleventh century the Auvergne is dense with Vierges Noires; by the twelfth, Rocamadour, Le Puy, and Montserrat are receiving thousands of pilgrims a year, with documented miracle-collections. The Crusades bring more — some images are said to have been carried from the Holy Land by returning knights, others copied from the icons of the Eastern empire.
The cult survives the Reformation in Catholic Europe and is repeatedly nearly destroyed in the French Revolution, when many of the original images are burned. The 19th century rebuilds: Le Puy installs a replacement image, Chartres reconstructs Notre-Dame de Sous-Terre, the Auvergne restores its Black Madonnas one by one. The 20th century reawakens devotion at the universal level — Pope John Paul II's pilgrimages to Częstochowa, Pope Benedict XVI's at Mariazell, the renewed Catalan and Polish national identification with their Madonnas.
Today, six of the ten most-pilgrimaged Marian shrines in Europe enshrine a Black Madonna. The cult is not a relic; it is a living devotion, with its own annual feasts (Engelweihe at Einsiedeln, the August procession at Tindari, the perpetual novenas at Częstochowa), its own pilgrim brotherhoods, and its own continuing miracle-collections.