King Alfonso XII was the King of Spain from 1874 until his death in 1885. He was born on November 28, 1857, and became king after the restoration of the Bourbon monarchy following the First Spanish Republic. His reign is noted for political stability and economic growth, as well as efforts to modernize Spain. Alfonso XII was the son of Queen Isabella II and was known for his charm and dedication to his country. He married Maria de las Mercedes of Orleans, but she died young, which deeply affected him. His legacy includes the establishment of a constitutional monarchy and improvements in Spanish infrastructure.