In the 13tll century three are portrayed, one foot of the Crucified overlying the other without the hypopodion. James de Voragine first mentions the change, which Ayala, bishop of Galicia, attributes to the Albigensian heretics. Benedict XIV pronounced the nail preserved in St. Cross, Rome, to be authentic. (See CRUCIFIX). On Irish crosses the Saviour's feet are represented tied with a cord, and his arms drooping (Walcott, Sacred Archceol. s.v.). (See CROSS).