- Born on September 12, 1869 in Rome
- Deceased in 1935, at the approximate age of 65 years
Parents
- Onorato Caetani (1842 - 1917), duca Caetani, ministre des Affaires étrangères du royaume d'italie, député
- Ada Bootle-Wilbraham (1846 - 1934)
Family
- Married on June 20, 1901 in Rome, with Vittoria Colonna (1880 - 1954), issuing
- Onorato (1902 - 1946)