Torrebillela and the church of San Pedro, two of the oldest buildings from Mungia, they still have a lot to teach us. The tour will bring to light some of the historical processes that took place in the Biscay of the late Middle Ages, from the flag wars to the reinforcement of the real power and the confrontations of the local elites beyond the battlefield. Once again, heritage will be a educational resource to better understand the processes of the past that have shaped our current societies.