This itinerary evokes the history of Carlism, a strong movement in Navarre In the 19th century that left its mark on many places in the region. The route demonstrates in situ the main events of the Carlist period.
In 1830 Fernando VII enacted the Pragmatic Sanction, which repealed the Law of Succession to the effect that if they King had no male heir his eldest daughter would inherit the throne. This measure excluded Prince Carlos María Isidro from the succession. Even before the death of Fernando VII a party in favour of the prince was set up (Carlists, or Traditionalists) and another group in favour of Isabel, the first-born of the King (Isabelinos, or Liberals).
The Isabelinos wanted liberal reforms along the lines of the French and Industrial Revolutions. The Carlists defended the old regime, the privileges and the influence of the Catholic Church and the restoration of the fueros (Charter). A large part of the population of Navarre took up this cause under the slogan Dios, Patria y Rey (God, Country and King) and intense wars ensued.