Alfonso XII (Alfonso Francisco de Asís Fernando Pío Juan María de la Concepción Gregorio Pelayo de Borbón y Borbón; 28 November 1857 – 25 November 1885), also known as El Pacificador (Spanish: the Peacemaker), was King of Spain from 29 December 1874 to his death in 1885.
After the Glorious Revolution of 1868 deposed his mother Isabella II from the throne, Alfonso studied in Austria and France. His mother abdicated in his favour in 1870, and he returned to Spain as king in 1874 following a military coup against the First Spanish Republic. Alfonso died aged 27 in 1885, and was succeeded by his son, Alfonso XIII, born the following year. The elder Alfonso's wife Maria Christina would serve as regent for the remainder of her pregnancy and until the younger Alfonso came of age.