The Spanish Constitution of Cádiz had a great European projection. Between 1812 and 1836 the text was translated into French, English, German, Italian and Portuguese. In some countries it was simply the object of doctrinal debates but in other States it had a more intense presence being used as a model for their first constitutional experiences or even coming into force with some small amendments. In this study it will be analysed the opinion that different political movements existing in Europe had of the text during its lifetime. An original approach as most of the studies deal with the projection of the Constitution in Latin America, while the European scope of the Constitution of 1812 has not been given the same attention, and its influence in political movements has been omitted.