Costantino Carlo Michele Agostino dei Principi Ruspoli-Poggio Suasa, married in Brussels, December 29, 1923 Elisabeth Catherine Adrienne Marie Anne Comtesse van der Noot d'Assche, by whom he had three sons:
*Marcantonio Mario Dimitri Ruspoli, 3rd Prince of Poggio Suasa
*Edoardo Eugenio Bosone dei Principi Ruspoli-Poggio Suasa, unmarried and without issue
*Marescotti Giovanni dei Principi Ruspoli-Poggio Suasa, married firstly Yvonne Masse, by whom he had two sons, and secondly at Chelsea, London, September 6, 1963 Diana Baronesse d'Orville van der Hoop, by whom he had three daughters:
**Francesco dei Principi Ruspoli-Poggio Suasa, unmarried and without issue
**Alexis dei Principi Ruspoli-Poggio Suasa, married and had issue:
**Livia dei Principi Ruspoli-Poggio Suasa, married Jean-Pierre Tasiaux, and had issue
**Serena dei Principi Ruspoli-Poggio Suasa, unmarried and without issue
**Dáphne Barbara Philippa dei Principi Ruspoli-Poggio Suasa, married civilly at Uccle, May 29, 1998 and religiously at Èze, June 27, 1998 François, Comte Didisheim, and had issue
Marescotti dei Principi Ruspoli-Poggio Suasa, married in Rome, June 10, 1935 Virginia dei Marchesi Patrizi Naro Montoro, whose mother was English, by whom he had a son and a daughter:
*Eugenio dei Principi Ruspoli-Poggio Suasa, married in Paris, May 2, 1960 Catherine Carolus-Barré, by whom he had a daughter and a son:
**Smeralda dei Principi Ruspoli-Poggio-Suasa, unmarried and without issue
**Marescotti Carlo dei Principi Ruspoli-Poggio Suasa, married and had issue
*Francesca Patrizia Palma Rita Maria Raimonda Carla dei Principi Ruspoli-Poggio Suasa, married in Rome, July 12, 1969 Eriprando Visconti di Modrone, Count of Vico Modrone, and had a son and a daughter, both unmarried and without issue
Alessandro Edmondo Eugenio dei Principi Ruspoli-Poggio Suasa, married in Paris, August 28, 1924 Marthe-Marie de Pineton de Chambrun, by whom he had one son and two daughters:
*Mario Giovanni Battista Pietro dei Principi Ruspoli-Poggio Suasa, married firstly in Paris, April 8, 1947 and divorced Claude Delmas, by whom he had two sons, and secondly on April 4, 1974 Dominique Rivolier, without issue:
**Stefano dei Principi Ruspoli-Poggio Suasa, married firstly in Paris, 1978 Laurence Allix, by whom he had an only daughter, and secondly in Paris Annie Nataf, without issue:
***Léonore dei Principi Ruspoli-Poggio Suasa
**Fabrizio dei Principi Ruspoli-Poggio Suasa, unmarried and without issue
*Giacinta Palma Margherita Maria dei Principi Ruspoli-Poggio Suasa, unmarried and without issue
*Palma Maria dei Principi Ruspoli-Poggio Suasa, married... di Maio
Emanuele Costantino dei Principi Ruspoli-Poggio Suasa, married Teresa Tomassetti, by whom he had two son:
*Carlo Maurizio dei Principi Ruspoli-Poggio Suasa, married in Rome Iolanda Padovano, by whom he had three daughter:
**Gioia dei Principi Ruspoli-Poggio Suasa
**Smeralda dei Principi Ruspoli-Poggio Suasa
**Margherita dei Principi Ruspoli-Poggio Suasa
*Camillo dei Principi Ruspoli-Poggio Suasa
Carlo Maurizio Giuseppe Edgardo dei Principi Ruspoli-Poggio Suasa, married firstly in Venice, September 12, 1927 Marina dei Conti Volpi di Misurata, by whom he had an only daughter, and secondly in Rome Luisa Maria Camperio, by whom he had an only son:
*Smeralda Giovanna Amelia Palma Maria dei Principi Ruspoli-Poggio Suasa, married in Rome Giancarlo Sbragia
