 A vial of the martyr's blood is enshrined there, and every 10 August on his feast day, the day on which his martyrdom is commemorated, it liquifies.The reliquary vial has been verified by scientists to contain true blood, along with a piece of skin and some fat and ash.The cathedral was consecrated in 1165 and since then the village was popularly known as the "Valley of St. Lawrence", as the village is situated in an amphitheater-like valley.