Camillo Francesco Massimo, 4th Principe di Arsoli 
He gained the title of 4th Principe di Arsoli.
Children of Camillo Francesco Massimo, 4th Principe di Arsoli and Eleonora Brancaccio
- Leone Massimo, 5th Principe di Arsoli+ b. 1896, d. 1979
- Vittorio Emanuele Massimo, Prince di Roccasecca deil Volsci+ b. 1911, d. 1983
- Elisabetta Massimo b. 1913
Eleonora Brancaccio 
Her married name became Massimo.
Children of Eleonora Brancaccio and Camillo Francesco Massimo, 4th Principe di Arsoli
- Leone Massimo, 5th Principe di Arsoli+ b. 1896, d. 1979
- Vittorio Emanuele Massimo, Prince di Roccasecca deil Volsci+ b. 1911, d. 1983
- Elisabetta Massimo b. 1913
Vittorio Emanuele Massimo, Prince di Roccasecca deil Volsci 
He gained the title of Prince di Roccasecca dei Volsci.
Child of Vittorio Emanuele Massimo, Prince di Roccasecca deil Volsci and Dawn Addams
Margarethe Bechshoft
Her married name became Massimo.
Dawn Addams 
She was an actress.1 Her married name became Massimo.
Child of Dawn Addams and Vittorio Emanuele Massimo, Prince di Roccasecca deil Volsci
- [S37] BP2003 volume 1, page 723. See link for full details for this source. Hereinafter cited as. [S37]
Josefa Domingos Soares
Her married name became Massimo.
Antonina Horne1
Child of Antonina Horne and Prince Paul Otto Charles Odescalchi
- [S466] Notices, The Telegraph, London, UK. Hereinafter cited as The Telegraph.
Christina Odescalchi1
- [S466] Notices, The Telegraph, London, UK. Hereinafter cited as The Telegraph.
Prince Paul Otto Charles Odescalchi1 
He was educated at Liverpool University, Liverpool, Lancashire, EnglandG.1 He was educated at Bristol University, Bristol, England.1 He was with the anti-Nazi movement in Hungary during the Second World War.1
Child of Prince Paul Otto Charles Odescalchi and Zsuzsanna Tamassy
Child of Prince Paul Otto Charles Odescalchi and Antonina Horne
- [S466] Notices, The Telegraph, London, UK. Hereinafter cited as The Telegraph.
Mark Odescalchi1
- [S466] Notices, The Telegraph, London, UK. Hereinafter cited as The Telegraph.