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. He was the son of Prince Carlos of Bourbon-Two Sicilies and María de las Mercedes, Princess of Asturias. He was born and died in Madrid, Spain.

Alfonso's mother was María de las Mercedes, Princess of Asturias, but she died in childbirth in 1904. Alfonso XIII, King of Spain, was unmarried at the time so as the Princess of the Asturias's eldest son, the young infante became heir presumptive to the Spanish crown, though, unlike his mother, he never held the title of Prince of Asturias.Por Real Decreto del 17 de octubre de 1904, gozó de todos los honores que le correspondían como heredero de la Corona, pero nunca ostentó el título de Príncipe de Asturias He was heir presumptive until the birth of his cousin, Alfonso, to Alfonso XIII and Queen Victoria Eugenie in 1907.

Marriage and issue Alfonso married Princess Alice of Bourbon-Parma (1917–2017), his second cousin, daughter of Elias, Duke of Parma and Piacenza, and Archduchess Maria Anna of Austria, on 16 April 1936 in Vienna, Austria. They had three children:

Princess Teresa of Bourbon-Two Sicilies, Duchess of Salerno (born 6 February 1937), Princess Teresa de Borbón-Dos Sicilias, Duchess of Salerno married to Íñigo Moreno y de Arteaga, 1st Marquess of Laserna (formerly 11th Marquess of Laula, born 18 April 1934), Iñigo Moreno y de Arteaga with seven children: Rodrigo Moreno y Borbón-Dos Sicilias (born 1 February 1962), Rodrigo Moreno y Borbón married in 2020 to Casilda Guerrero-Burgos y Fernández de Córdoba, 21st Duchess of Cardona (born 1982), with one child Alicia Moreno y Borbón-Dos Sicilias (born 6 June 1964), Alicia Moreno y Borbón married to José Luis Hernández y Eraso (born 1949), José Luis Hernández ABC: Boda de Alicia Moreno y Borbón-Dos-Sicilias con José Luis Hernández Eraso with two children Alfonso Moreno y Borbón-Dos Sicilias (19 October 1965 – 18 May 2018), Alfonso Moreno y Borbón married to Marta Calvo y Molezún (born ca. 1970), Marta Calvo y Molezún with two children Beatriz Moreno y Borbón-Dos Sicilias (born 10 May 1967), Beatriz Moreno y Borbón married to Lucas Urquijo y Fernández de Araoz (grandson of Alejandro Fernández de Araoz), Lucas Urquijo Fernández de Araoz with two children Fernando Moreno y Borbón-Dos Sicilias (8 July 1969 – 12 May 2011) Fernando Moreno y Borbón Clara Moreno y Borbón-Dos Sicilias (born 14 June 1971) Clara Moreno y Borbón Delia Moreno y Borbón-Dos Sicilias (born 30 August 1972), Delia Moreno y Borbón married to Álvaro de Ledesma y Sanchiz, 5th Marquis of Arecibo (born 20 October 1962), Álvaro de Ledesma y Sanchiz with two children Infante Carlos, Duke of Calabria (16 January 1938 – 5 October 2015), Infante Carlos, Duke of Calabria married to Princess Anne of Orléans (born 4 December 1938), Princess Anne of Orleáns with five children: Cristina de Borbón-Dos Sicilias y Orleáns (born 16 March 1966), Cristina de Borbón-Dos Sicilias y Orleáns married to Pedro López-Quesada y Fernández-Urrutia (born 26 July 1963), Pedro López-Quesada y Fernández-Urrutia with two children María Paloma de Borbón-Dos Sicilias y Orleáns (born 5 April 1967), María de Borbón-Dos Sicilias y Orleáns married to Archduke Simeon of Austria(born 26 June 1959), Simeon von Habsburg-Lothringen with five children Pedro de Borbón-Dos Sicilias, Duke of Calabria (born 16 October 1968), Pedro de Borbón-Dos Sicilias y Orleáns, Duke of Calabria married to Sofía Landaluce y Melgarejo (born 23 November 1973), Sofía Landaluce y Melgarejo with seven children: Jaime de Borbón-Dos Sicilias y Landaluce, Duke of Noto (born 26 June 1992) Jaime de Borbón-Dos Sicilias y Landaluce Juan de Borbón-Dos Sicilias y Landaluce (born 18 April 2003) Juan de Borbón-Dos Sicilias y Landaluce Pablo de Borbón-Dos Sicilias y Landaluce (born 26 June 2004) Pablo de Borbón-Dos Sicilias y Landaluce Pedro de Borbón-Dos Sicilias y Landaluce (born 3 January 2007) Pedro de Borbón-Dos Sicilias y Landaluce Sofía de Borbón-Dos Sicilias y Landaluce (born 12 November 2008) Sofía de Borbón-Dos Sicilias y Landaluce Blanca de Borbón-Dos Sicilias y Landaluce (born 7 April 2011) Blanca de Borbón-Dos Sicilias y Landaluce María de Borbón-Dos Sicilias y Landaluce (born 21 April 2015) María de Borbón-Dos Sicilias y Landaluce Inés de Borbón-Dos Sicilias y Orleáns (born 20 April 1971), Inés de Borbón-Dos Sicilias y Orleáns married to Michele Carrelli Palombi (born 13 November 1965), Michele Carrelli Palombi with two children Victoria de Borbón-Dos Sicilias y Orleáns (born 24 May 1976), Victoria de Borbón-Dos Sicilias y Orleáns married to Markos Nomikos (born 29 October 1965), Markos Nomikos with four children

Princess Inés of Bourbon-Two Sicilies, Duchess of Syracuse (born 18 February 1940), Princess Inés de Borbón-Dos Sicilias, Duchess of Siracusa married to Luis de Morales y Aguado (8 October 1933 – 10 November 2000), Luis de Morales y Aguado with five children: Isabel de Morales y Borbón-Dos Sicilias (born 10 April 1966), Isabel de Morales y Borbón married to Joaquín Galán y Otamendi, Joaquín Galán y Otamendi with two daughters: Carlota Galán y Morales de Borbón-Dos-Sicilias (born March 1998) Carlota Galán de Morales Inés Galán y Morales de Borbón-Dos-Sicilias (born 3 January 2000) Inés Galán de Morales Eugenia de Morales y Borbón-Dos Sicilias (born 14 December 1967), Eugenia de Morales y Borbón married to Iñigo Valdenebro y García de Polavieja, Iñigo Valdenebro y García de Polavieja with three children Sonia de Morales y Borbón-Dos Sicilias (9 December 1969 – 26 July 2022), Sonia de Morales y Borbón married to Alejandro García-Atance y Leurquin (born 1974), Alejandro García-Atance y Leurquin with two children Manuel de Morales y Borbón-Dos Sicilias (born 16 December 1971), Manuel de Morales y Borbón married to Emma Ruiz de Azcárate y García de Lomas, Emma Ruiz de Azcárate y García de Lomas with two children Mencía de Morales y Borbón-Dos Sicilias (born 25 November 1975) Mencía de Morales y Borbón

Honours and arms Orders and decorations : Knight of the Distinguished Order of the Golden Fleece, 1 December 1901 Grand Cross of the Royal and Distinguished Order of Charles III, with Collar, 1 December 1901 Grand Cross of the Royal Order of Isabella the Catholic, 1 December 1901 Knight of the Order of Alcántara, 13 April 1923

Heraldry

Ancestry

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