Gilberto Tiberto Carbonello Maria Arrivabene-Valenti-Gonzaga was born 5 July 1961 in Rome, Italy to Leonardo Arrivabene-Valenti-Gonzaga (1904-1971) and Maria delle Grazie Brandolini d'Adda (1923-2018) . He married Bianca di Savoia-Aosta (1966-) 11 September 1988 in Frazione of San Giustino Valdami, Loro Ciuffenna, Province of Arezzo, Tuscany, Italy.
Children
| Name | Birth | Death | Joined with |
| Viola Arrivabene-Valenti-Gonzaga (1991-) | 31 May 1991 Rome, Italy | ||
| Vera Arrivabene-Valenti-Gonzaga (1993-) | 18 July 1993 Samedan, Maloja Region, Canton of Graubünden, Switzerland | ||
| Mafalda Arrivabene-Valenti-Gonzaga (1997-) | 27 January 1997 Conegliano, Province of Treviso, Veneto, Italy | ||
| Maddalena Arrivabene-Valenti-Gonzaga (2000-) | 24 April 2000 Conegliano, Province of Treviso, Veneto, Italy | ||
| Leonardo Arrivabene-Valenti-Gonzaga (2001-) | 5 October 2001 Conegliano, Province of Treviso, Veneto, Italy | ||
Siblings