Alfonso XIII (Spanish: Alfonso León Fernando María Jaime Isidro Pascual Antonio de Borbón y Habsburgo-Lorena; French: Alphonse Léon Ferdinand Marie Jacques Isidore Pascal Antoine de Bourbon; 17 May 1886 – 28 February 1941), 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.
Alfonso XIII's upbringing and public image were closely linked to the military estate; he often presented himself as a soldier-king. His effective reign started four years after the Spanish–American War, when various social milieus projected their expectations of national regeneration onto him. Like other European monarchs of his time he played a political role, entailing a controversial use of his constitutional executive powers.