The Bourbon-Parma line is an Italian branch line of the Spanish Bourbons and goes back to Philip , Infante of Spain (1720–1765), the fourth son of the Spanish King Philip V (1683–1746). In 1748, the Treaty of Aachen , which ended the War of the Austrian Succession (1740-1748), laid down the transfer of the Italian duchies of Parma , Piacenza and Guastalla to Philip of Bourbon-Parma. This enabled the Spanish Bourbons to assert their claim to the inheritance of Elisabetta Farnese (1692–1766), Philip V's second wife and mother of Philip of Bourbon-Parma, which had existed since 1731 .
The most important members include:
Philipp (1720–1765), son of Philip V of Spain and Elisabetta Farnese of Parma, 1748–1765 Duke of Parma
- Isabella von Bourbon-Parma (1741–1763), daughter of Philipp von Bourbon-Parma and wife of the future Emperor Joseph II (1741–1790)
- Maria Luise von Bourbon-Parma (1751–1819), daughter of Philipp von Bourbon-Parma and, as the wife of Charles IV (1748–1819), Queen of Spain from 1788 to 1808
Ferdinand von Bourbon-Parma (1751–1802), son of Philip of Bourbon-Parma, 1765–1802 Duke of Parma , Piacenza and Guastalla
- Caroline von Bourbon-Parma (1770–1804), daughter of Ferdinand, first wife of Prince Maximilian of Saxony (1759–1838), mother of the Saxon kings Friedrich August II. (1797–1854) and Johann (1801–1873)
Ludwig von Bourbon-Parma (1773–1803), son of Ferdinand, 1801–1803 King of Etruria
Charles II. Ludwig von Bourbon-Parma (1799–1883), son of Ludwig, 1803–1807 King of Etruria , 1815–1847 Duke of Lucca , 1847–1849 Duke of Parma , Piacenza and Guastalla
Charles III von Bourbon-Parma (1823-1854), son of Charles II, 1849-1854 Duke of Parma , Piacenza and Guastalla
Robert I of Bourbon-Parma (1848–1907), son of Charles III, 1854–1860 Duke of Parma , Piacenza and Guastalla
- Marie Louise of Bourbon-Parma (1870–1899), daughter of Robert I, Princess of Parma and Tsarina of Bulgaria
- Elias of Bourbon-Parma (1880–1959), son of Robert I.
- Sixtus von Bourbon-Parma (1886–1934), son of Robert I, made famous through the Sixtus affair in 1917
- Franz Xaver von Bourbon-Parma (1889–1977), son of Robert I, 1952–1975 Carlist pretender to the Spanish throne
- Zita von Bourbon-Parma (1892–1989), daughter of Robert I and wife of Emperor and King Charles I (IV.) Of Austria-Hungary
- Felix von Bourbon-Parma (1893–1970), son of Robert I, married to Charlotte (Luxembourg)
- René Karl Maria Joseph von Bourbon-Parma (1894–1962), son of Robert I.
- Alicia von Bourbon-Parma (1849–1935), daughter of Karl III., Mother of Leopold Wölfling (1868–1935) and the Saxon Crown Princess Luise of Austria-Tuscany (1870–1947)
- Robert I of Bourbon-Parma (1848–1907), son of Charles III, 1854–1860 Duke of Parma , Piacenza and Guastalla
- Charles III von Bourbon-Parma (1823-1854), son of Charles II, 1849-1854 Duke of Parma , Piacenza and Guastalla
- Maria Luisa von Bourbon-Parma (1802–1857), daughter of Ludwig, second wife of Prince Maximilian of Saxony
- Charles II. Ludwig von Bourbon-Parma (1799–1883), son of Ludwig, 1803–1807 King of Etruria , 1815–1847 Duke of Lucca , 1847–1849 Duke of Parma , Piacenza and Guastalla
- Maria Antonia of Bourbon-Parma (1774–1841)
- Charlotte of Bourbon-Parma (1777–1813)
The descendants of Felix and Charlotte are the Grand Dukes of Luxembourg, who, strictly speaking, also belong to the House of Bourbon-Parma; the official title there is “Grand Duke of Luxembourg, Duke of Nassau, Prince of Bourbon-Parma” and the name there is “of Luxembourg-Nassau from the House of Bourbon-Parma” (see also the Grand Duke's coat of arms) .
The head of the family has been Carlos Xavier (* 1970), great-grandson of the last ruling duke, since 2010.