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Children of Jean-Pierre II (Victor Hermann) and Hortense Augusta (Hortense McCann)

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Doria Theresa, Countess of Lille

• Doria Theresa's daughter, Adelaide Polyxene, is the grandmother of Alexandra Eugenie of Serbo-Croatia (1915–2012; later known as Alexandra Eugenia, titular queen consort from 1978 to 1989). Doria Theresa's other daughter, Caroline Renee, is the great-grandmother of Alexandra Eugenia.
  • Doria Theresa (1808–1875) -> Caroline Renee (1841–1912) -> Peter Christopher (1863–1890) -> Irene Augusta (1889–1966) -> Alexandra Eugenia (1915–2012)
  • Doria Theresa (1808–1875) -> Adelaide Polyxene (1848–1910) -> Alexander (Tomislav) (1881–1946) -> Alexandra Eugenia (1915–2012)

Wilhelmine Joanne, Crown Princess of Genovia

Prince George Leopold of Listenbourg

• His son, Prince Hermann Alastair (1836–1899), is the maternal great-great-great-grandfather of the current queen consort in pretence, Greta Christabel:
  • George Leopold (1816–1839) -> Hermann Alastair (1836–1899) -> Charles Peter (1874–1939) -> Auguste Leopoldine (1895–1970) -> William Johan (1918–1986) -> Astrid Margareta (1944–) -> Greta Christabel (1971–)

Adelaide Charlotte, Countess Chotek von Chockov

• Her daughter, Justina Polyxena, is the aunt (by marriage) of Walburga Monika (1867–1947), Queen consort of Listenbourg from 1890 to 1906.
  • Adelaide Charlotte (1816–1901) -> Justina Polyxena (1848–1930; wife of Waldemar Frederick (1850–1912), brother of Karl Victor (1847–1929; Walburga Monika's father))

Irene Astrid, Countess of Llagostera (later Abbess of Sainte-Agathe)

• Her daughter, Cristina Pilar, Duchess of San Toribio (1847–1922), is the great-grandmother of Lady Louise Gladys Mary Abigail Beatrice Elizabeth Arbuthbott-Bumley-Smythe, otherwise known as Lady Louise Arbuthbott (1912–1995), the titular Crown Princess of Listenbourg from 1933 to 1963
  • Cristina Pilar (1847–1922) -> Juana Cristina (1869–1910) -> Beatrice Abigail (1890–1976) -> Louise Gladys (1912–1995)

Prince Octavius John of Listenbourg

• His daughter, Henriette Caroline (1856–1940), is the great-great-grandmother of Xenia Helene (1945–2023), titular queen consort from 1989 to 1997:
  • Henriette Caroline (1856–1940) -> Victoria Henrietta (1878–1956) -> Astrid Wilhelmine (1899–1927) -> Helene Eugenie (1920–1986) -> Xenia Helene (1945–2023)

Prince Arthur Henry of Listenbourg

Prince Frederic Philippe of Listenbourg

• One of his illegitimate daughters, Jacquetta Renee von Listenbourg (1865–1950), was the third wife (and later widow) of Count Jan Kryštof Chotek von Chockov (1823–1903), the brother-in-law of Princess Adelaide Charlotte of Listenbourg, Countess Albert Nepomuk Chotek von Chockov (1816–1901).
• His illegitimate (but recognised) son, Pierre Victor von Listenbourg (1870–1955), was the grandfather of Countess Anniken Marianne Løvenskiold-Treschow (1914–1978), as she was the daughter of his eldest child, Victoria Christina Løvenskiold (née von Listenbourg; 1891–1980). Anniken Marianne was the mother of Lady Joan Olivia Sinclair-Lovelace (1934–2023), the titular hereditary princess of Listenbourg from 1963 to 1969.