A long time ago, the summit of the Voirons mountain range housed a Roman temple, dedicated to Venus, the goddess of love. A few centuries later, Christianity arrived. A Geneva bishop was displeased to see local peasants continue to worship the pagan goddess. The ungodly temple was destroyed, much to Satan’s displeasure, and he decided to give the local Christians a hard time. He turned into a huge wild boar and sowed panic among the local mountain population.
Amédée de Langrin, an experienced knight and lord of Brens, decided to put an end to the evil boar’s ravages. Riding alone on the mountain, he found the animal, but his horse was disembowelled by the boar! His only hope for salvation was a desperate flight. The second attempt was better prepared, with a group of seasoned hunters. But once again, the affair was a disaster. The ferocious animal terrorised the nimrods, even wounding the lord of Langrin. Seriously injured, the knight swore that if he escaped, he would have a chapel built there to thank the Blessed Virgin.
Amédée de Langrin eventually healed. He kept his promise, and in 1451 he had the chapel of Notre-Dame-des-Voirons built on the mountain. However, the evil boar was still prowling in the massif. He went on to have an edifying ending. One night, the door of the chapel was open and the animal entered the building. Awakened by grunts, the sacristan hurried to close the door. Cornered, the enormous boar was killed by the hunters with spikes.