[2][3] Voting for the Cortes was on the basis of compulsory, universal manhood suffrage, which comprised all national males over 25 years of age, having at least a two-year residency in a municipality and in full enjoyment of their civil rights.

The remaining 30 were allocated to special districts comprising a number of institutions, electing one seat each—the archdioceses of Burgos, Granada, Santiago de Compostela, Seville, Tarragona, Toledo, Valencia, Valladolid and Zaragoza; the Royal Spanish Academy; the royal academies of History, Fine Arts of San Fernando, Exact and Natural Sciences, Moral and Political Sciences and Medicine; the universities of Madrid, Barcelona, Granada, Oviedo, Salamanca, Santiago, Seville, Valencia, Valladolid and Zaragoza; and the economic societies of Friends of the Country from Madrid, Barcelona, León, Seville and Valencia.

[20][21] The Spanish Constitution of 1876 enshrined Spain as a constitutional monarchy, awarding the monarch the right of legislative initiative together with the bicameral Cortes; the capacity to veto laws passed by the legislative body; the power to appoint senators and government ministers; as well as the title of commander-in-chief of the army and navy.

The monarch would play a key role in the system of el turno pacífico (English: the Peaceful Turn) by appointing and dismissing governments and allowing the opposition to take power.

Under this informal system, the major political parties at the time, the Conservatives and the Liberals—characterized as elite parties with loose structures dominated by internal factions, each led by powerful individuals—alternated in power by means of election rigging, which they achieved through the encasillado, assignating the seats in the general elections before they were held by using the links between the Ministry of Governance, the provincial civil governors and the local bosses (caciques) to ensure victory and exclude minor parties from the power sharing.