4 - The Constitutional Triennium in Spain, 1820–1823

Summary

The reinstallation of liberal constitutionalism in Spain in 1820 was the first major challenge to the conservative political system of the Restoration, with far-reaching effects on the European and American continents. Spanish liberals endeavored to continue a political program based on the constitution of Cádiz (1812), although they encountered many obstacles in the form of inner discord and, especially, a local robust counterrevolutionary movement which enjoyed external support. The Trieno Constitucional was a moment of rapid and intense politicization, which surpassed the social elites to reach into a wider public that included popular sectors. A vigorous public opinion was developed and elections with mass participation were held at various administrative levels. The reverberations of the Spanish revolution were felt abroad. Naples-Sicily, Portugal and Piedmont-Sardinia soon adopted the Cádiz constitution. Moreover, during the Triennium the American possessions of the Spanish and Portuguese monarchies secured their independence, at a critical moment in which the Iberian metropoles were unable to delay the process anymore. Ultimately, the return of liberalism to Southern Europe was short-lived. The constitutional regimes fell after interventions accorded by the continental powers endorsed the local reactionary interests.