 Infante Alfonso, Duke of Calabria

Infante Alfonso of Spain, Prince of the Two Sicilies, Duke of Calabria (30 November 1901 – 3 February 1964) was one of two claimants to the title of the head of the House of Bourbon-Two Sicilies from 1960 until his death in 1964.Alfonso was the son of Prince Carlos of Bourbon-Two Sicilies (1870–1949) and his wife, Mercedes, Princess of Asturias (1880–1904).