Pierre I de Flotte, Seigneur de Baume, Revel et Salmerages1
He gained the title of Seigneur de Salmerages.1 He gained the title of Seigneur de Revel.1 He gained the title of Seigneur de Flotte.1
Child of Pierre I de Flotte, Seigneur de Baume, Revel et Salmerages
Edward John Leveson1
Child of Edward John Leveson
- Admiral Sir Arthur Cavenagh Leveson+1 b. 27 Jan 1868, d. 26 Jun 1929
John B. Leveson1
John William Rivallon de Poher de la Poer, 2nd Count de la Poer1 
He was educated at The Oratory School, South Kensington, London, EnglandG.1 He gained the rank of officer in the 4th Battalion, Leinster Regiment.1 He held the office of Justice of the Peace (J.P.) for County Waterford.1 He held the office of High Sheriff of County Waterford in 1913.1 He succeeded as the 2nd Count de la Poer [Papal States, 1864] on 30 August 1915.1 He succeeded as the 19th Baron le Power and Coroghmore, co. Waterford [I., 1535] on 30 August 1915, de jure.1 In March 1922 he claimed Barony of Le Power and Coroghmore and Committee of Privileges of House of Lords decided that but for the attainder of John Power in 1691, the claim had been established.1 He lived at Gurteen le Poer, County Waterford, IrelandG.1
Children of John William Rivallon de Poher de la Poer, 2nd Count de la Poer and Muriel Henrietta Louisa Best
- Frances Elinor Mary de la Poer2 b. 16 Apr 1908
- Patricia Mary de la Poer2 b. 19 Mar 1909, d. 6 May 1960
- Edmond Robert Arnold de la Poer, 3rd Count de la Poer2 b. 25 Feb 1911, d. 20 Nov 1995
- Mary Valerie Meynella de la Poer2 b. 13 Feb 1914, d. 2 Jan 1970
- John Piers Anthony de la Poer+2 b. 12 Apr 1916, d. 24 Aug 1943
- Denise Yseult Mary de la Poer+2 b. 2 Feb 1919
Edmond Alan Tremeur de Poher de la Poer-Monsell1
Child of Edmond Alan Tremeur de Poher de la Poer-Monsell and Marguerite Kathleen Gerard Walmesley
- Trifine Kathleen de la Poer-Monsell+ b. 1918, d. 30 Aug 2004
William Stephen Arnold Trémeur de Poher de la Poer1 
He gained the rank of Lieutenant in the 4th Battalion, Leinster Regiment.1
Lucinda C. S. Watson1
From 1990, her married name became Leveson.1
John Herbert Lewes1
Child of John Herbert Lewes and Constance Sutherland
Ermyngarde Berthe Frances de Poher de la Poer1 
From 9 June 1908, her married name became Elliott.
Lt.-Col. George Augustus Elliott1
Child of Lt.-Col. George Augustus Elliott
- Frederick Barnard Elliott2 d. 2 Jan 1950