Tradition has it that, on his return from the First Crusade, a certain Raoul (or Rodolphe), of the family of the Lords of Sablé, donated to our monastery—founded by his ancestor Geoffroy—a thorn from the crown placed upon Christ’s head at the time of his Passion. This relic, the Holy Thorn, was carefully preserved by the monks over the centuries, and the custom arose of venerating it on Easter Monday.