King Alfonso XIII of Spain was the monarch of Spain from 1886 to 1931. He was the posthumous son of Alfonso XII and was proclaimed king at the age of 17 months. During his reign, Alfonso XIII oversaw the modernization of Spain, including the development of its infrastructure and
From Wikipedia
Alfonso XIII, also known as El Africano or the African for his Africanist views, was King of Spain from his birth until 14 April 1931, when the Second Spanish Republic was proclaimed. He became a monarch at birth as his father, Alfonso XII, had died the previous year. Alfonso's mother, Maria Christina of Austria, served as regent until he assumed full powers on his sixteenth birthday in 1902.