Alfonso XII (November 28, 1857–November 25, 1885) was king of Spain, reigning from 1875 to 1885, after a "coup d'etat" restored the monarchy and ended the ephemeral First Spanish Republic.
Alfonso was the son of Isabella II of Spain, and allegedly, Francis of Assisi de Borbon, her King Consort. His true biological paternity is uncertain, though his legal paternity is not: his mother was married to her (presumed homosexual) cousin Francis of Assisi de Borbon, the King Consort of Spain, at the time of Alfonso's conception and birth. Some theories suggest that Alfonso's biological father might have been either Enrique Puigmoltó y Mayans, captain of the Royal Guard, or General Francisco Serrano.
ALFONSO XII COINAGE