Guglielmo Camillo Carlo Rospigliosi1 
Children of Guglielmo Camillo Carlo Rospigliosi and Hon. Helen Mary Grace Lyon-Dalberg-Acton
- Ludovico Giulio Francesco Maria Rospigliosi+2 b. 30 Jun 1934
- Giovanna Maria Carolina Annunziata Rospigliosi+2 b. 16 Jun 1935, d. 16 Apr 2020
- Guardino Ricardo Carlo Francesco Maria Rospigliosi-Pallavicini+2 b. 6 Sep 1938, d. 29 Nov 2020
Hon. Matthew Bernardo Berkeley Portman1,2
Caroline Steenson1 
From 30 July 1983, her married name became Portman.
Child of Caroline Steenson and Christopher Edward Berkeley Portman, 10th Viscount Portman of Bryanston
- Hon. Luke Oliver Berkeley Portman2 b. 31 Aug 1984
Ludovico Giulio Francesco Maria Rospigliosi1
He was educated at Downside School, Bath, Somerset, England.1 He graduated from Trinity College, Oxford University, Oxford, Oxfordshire, England.1 He was awarded the Order pro Merito Melitense.1 He was awarded the Knight of Justice, Constantinian Order of St. George.1 He was awarded the Knight of Honour and Devotion, Sovereign Military Order of Malta.1 He was Historian to the Sovereign Military Order of Malta.1 He lived in 2003 at 116 via del Seminario, Rome, Italy.1
Children of Ludovico Giulio Francesco Maria Rospigliosi and Giovanna Sallier de la Tour
- Maria Lucrezia Elena Francesca Carolina Margherita Vittoria Rospigliosi+2 b. 11 May 1966
- Camillo Carlo Felice Francesco Maria Rospigliosi+2 b. 13 Jun 1969
- Olimpia Francesca Maria Rospigliosi2 b. 6 Jan 1975
Carlo Sallier de la Tour, 8th Marquis de Cordonn et Combloux
Child of Carlo Sallier de la Tour, 8th Marquis de Cordonn et Combloux
Giovanna Sallier de la Tour1
Children of Giovanna Sallier de la Tour and Ludovico Giulio Francesco Maria Rospigliosi
- Maria Lucrezia Elena Francesca Carolina Margherita Vittoria Rospigliosi+2 b. 11 May 1966
- Camillo Carlo Felice Francesco Maria Rospigliosi+2 b. 13 Jun 1969
- Olimpia Francesca Maria Rospigliosi2 b. 6 Jan 1975
Camillo Carlo Felice Francesco Maria Rospigliosi1
Child of Camillo Carlo Felice Francesco Maria Rospigliosi and Lucia Galimberti
- Bianca Rospigliosi2 b. 9 Apr 2001
Lucia Galimberti1
Child of Lucia Galimberti and Camillo Carlo Felice Francesco Maria Rospigliosi
- Bianca Rospigliosi2 b. 9 Apr 2001
Bianca Rospigliosi1
Maria Lucrezia Elena Francesca Carolina Margherita Vittoria Rospigliosi1
Maria Lucrezia Elena Francesca Carolina Margherita Vittoria Rospigliosi usually went by her middle name of Lucrezia.
Children of Maria Lucrezia Elena Francesca Carolina Margherita Vittoria Rospigliosi and Conte Federico Borromeo Arese
- Olimpia Borromeo Arese2 b. 11 Dec 1999
- Carlo Borromeo Arese2 b. 16 May 2002