The parish priest of this town doubted the Real Presence of Christ in the Eucharist. One day in the year 1010, while celebrating Mass, the miracle occurred: the wine contained in the chalice was converted entirely into live Blood. At present, the Sacred Relics are preserved in a gothic reliquary from 1426 that contains the altar cloth spotted with Blood, and other relics given from Pope Sergius IV to Saint Ermengol.