Isabelle's 4 children were from her 1st husband Count d'Harcourt.
Bernard (1925-1958)m.1st 4 Nov 1948 (div 1949) Zenaide Rachewska (born 1 Sep 1930);
m.2d Paris 27 Jan 1951 Yvonne de Contades (born 22 Apr 1928)
> Bruno (born 1951)
> Francois (born 1953)
Gilone Jeanne Armande Anne Marie (born 1927)m.Cany 9 Sep 1950 Antoine de Dreux-Brézé (born 1928)
> Laure de Dreux-Brézé (born 1951)
> Anne de Dreux-Brézé (1952-1953)
> Diane de Dreux-Brézé (born 1954)
> Anne-Pierre de Dreux-Brézé (1958-1958)
> Isabelle de Dreux-Brézé (1964-1966)
Isabelle Henriette Christiane Gabrielle Marie (1927-1993)m.Paris 20 Oct 1948 Pr Louis Murat (born 1920)
> Pierre Charles Marie Jean Joachim Napoléon (born 1949)
> Xavier Paul Marie Bruno Joachim Napoléon (1951-1951)
> Leïla Marie Isabelle Solange Monique Anne (born 1953)
> Laura Marguerite Marie Cécile Gilone (born 1954)
> Bernard Pierre Marie François Paul Joachim Napoléon (born 1959)
> Jérôme-Paul Louis Marie Joachim Napoléon (born 1966)
Monique Gabrielle Caroline Juliette Marie (born 1929)m.Paris 1 Jul 1948 (rel) 3 Jul 1948 Cte Alfred Boulay de la Meurthe (born 1925)
> Gilone (born 1949)
> Iseult (born 1956)