The Viper of Barcelona, symbolizing evil and betrayal, characterized by a dragon’s head, snake’s tail, bat wings and woman’s breasts. Its name means viperine in old Catalan. Its performance in various processions was documented from the 14th century up to 1780. It was recovered in 1993 as part of Barcelona Popular Following (Seguici Popular). La Dansa de la Vibria is performed by gralla, traditional Catalan double-reed instrument) musicians and percussionists. It is a fire-breathing beast that plays part in correfocs (fire runs).