Princess Maria Pia of Bourbon-Two Sicilies

Maria Pia married Robert I, the exiled Duke of Parma and Piacenza and son of Charles III, Duke of Parma and his wife Princess Louise Marie Thérèse of France, on 5 April 1869 in Rome.^[1] Maria Pia and Robert, who were half first cousins once removed, had twelve children, of whom six were mentally disabled:

1. Princess Marie Louise of Parma (17 January 1870 – 31 January 1899) she married Ferdinand I of Bulgaria on 20 April 1893.^[2] They had four children.
2. Prince Ferdinando of Parma (5 March 1871 – 14 April 1871)
3. Princess Luisa Maria of Parma (24 March 1872 – 22 June 1943) she was mentally disabled.
4. Henry, Duke of Parma (13 June 1873 – 16 November 1939) he was mentally disabled
5. Princess Maria Immacolata of Parma (21 July 1874 – 16 May 1914) she was mentally disabled.
6. Joseph, Duke of Parma (30 June 1875 – 7 January 1950) he was also mentally disabled
7. Princess Maria Teresa of Parma (15 October 1876 – 25 January 1959) she was mentally disabled.
8. Princess Maria Pia of Parma (9 October 1877 – 29 January 1915) she was mentally disabled.
9. Princess Beatrice of Parma (9 January 1879 – 11 March 1946) she married Count Pietro Lucchesi-Palli (grandson of from second marriage of Princess Caroline of Naples and Sicily) on 12 August 1906. They had three sons:
   • Count Antonio Lucchesi-Palli (1 June 1907 – 4 January 1911)
   • Count Roberto Lucchesi-Palli (7 May 1908 – 9 June 1983) he married Stefania Ruffo di Calabria on 7 June 1941. They have four sons.
   • Count Adinolfo Lucchesi-Palli (18 June 1911— 26 February 1986) he married Sarolta Teleki Gräfin von Szek on 2 June 1946. They have six children.
10. Elias, Duke of Parma (23 July 1880 – 27 June 1959) he married Archduchess Maria Anna of Austria on 25 May 1903.^[2] They had eight children.
11. Princess Maria Anastasia of Parma (25 August 1881 — 7 September 1881) Died in infancy.
12. Prince Augusto of Parma (22 September 1882 – 22 September 1882) stillborn child

Maria Pia died as a result of childbirth and was buried at Villa Borbone near Viareggio. After her death, Robert I remarried in 1884 to Maria Antonia of Portugal, daughter of the deposed Miguel I of Portugal and Adelaide of Löwenstein-Wertheim-Rosenberg; they had twelve children.^[3]