Comte Geoffroy de Vitry d’Avancourt1
Child of Comte Geoffroy de Vitry d’Avancourt
Nicole de Vitry d’Avancourt1
Children of Nicole de Vitry d’Avancourt and Alfonso Segundo del Prado y Jessel
- Mariano del Prado y de Vitry d’Avoncourt2 b. 12 Oct 1996
- Jaime del Prado y de Vitry d’Avoncourt2 b. 12 Oct 1996
Mariano del Prado y de Vitry d’Avoncourt1
Jaime del Prado y de Vitry d’Avoncourt1
Hon. Joanne Margaret Jessel1
From 19 October 1967, her married name became Butler. She lived in 2003 at 13 Paultons Street, London, EnglandG.1
Child of Hon. Joanne Margaret Jessel and Simon Laforey Butler
- Ashley Edward Hubert Butler2 b. 22 Feb 1969
Patrick John Butler1 
He lived at Medland Manor, Cheriton Bishop, Devon, England.1
Child of Patrick John Butler and Eileen Mary Allison Tokeley
Simon Laforey Butler1
Child of Simon Laforey Butler and Hon. Joanne Margaret Jessel
- Ashley Edward Hubert Butler2 b. 22 Feb 1969
Ashley Edward Hubert Butler1
Jessica Marian de Wet1
After her marriage, Jessica Marian de Wet was styled as Baroness Jessel on 20 December 1960. From 20 December 1960, her married name became Jessel. She lived in 2003 at 4 Sloane Terrace Mansions, London, EnglandG.1
