 Male6th Marquess of Waterford Henry de la Poer BERESFORD |
| Birth | 28 Apr 1875 | |
| Death | 1 Dec 1911 | Portlaw, Co. Waterford, Ireland  |
| Burial | ||
| Marriage | 16 Oct 1897 [1, 2] | London, St George Hanover Square [1, 2] |
| Father | 5th Marquess of Waterford John Henry de la Poer BERESFORD | F9559 Group Sheet | |
| Mother | Blanche Elizabeth Adelaide SOMERSET | F9559 Group Sheet | |
 FemaleBeatrix Frances PETTY-FITZMAURICE |
| Birth | 25 Mar 1877 | |
| Death | 5 Aug 1953 | |
| Burial | ||
| Other Spouse | Osborne de Vere BEAUCLERK | F15544 | |
| Marriage | ||
| Father | 5th Marquess of Lansdowne Henry Charles Keith PETTY-FITZMAURICE | F9738 Group Sheet | |
| Mother | Maud Evelyn HAMILTON | F9738 Group Sheet | |
| Female Blanche Maud de la Poer BERESFORD |
| Birth | Abt 1898 | |
| Death | 29 Sep 1940 | Staines, Middx |
| Burial | ||
| Spouse | Richard Desiré GIROUARD | F9769 | |
| Marriage | 26 Oct 1927 | London, St George Hanover Square |
| Female Katherine Nora de la Poer BERESFORD |
| Birth | 23 Dec 1899 | |
| Death | Abt 1991 | |
| Burial | ||
| Spouse | David (Sir) DAWNAY | F9770 | |
| Marriage | 14 Oct 1926 | Paddington, London W |
| Male 7th Marquess of Waterford John Charles de la Poer BERESFORD |
| Birth | 6 Jan 1901 | Portlaw, Co. Waterford, Ireland |
| Death | 25 Sep 1934 | Portlaw, Co. Waterford, Ireland |
| Burial | ||
| Spouse | Juliet Mary LINDSAY | F9771 | |
| Marriage | 14 Oct 1930 | London, St George Hanover Square |
| Female Beatrix Patricia de la Poer BERESFORD |
| Birth | 23 Dec 1902 | |
| Death | 19 Jun 1986 | |
| Burial | ||
| Spouse | Lynden Roberts MILLER | F9772 | |
| Marriage | 7 Jul 1926 | Paddington, London W |
| Male William Mostyn de la Poer BERESFORD |
| Birth | 30 May 1905 | Stradbally, Co. Waterford, Ireland |
| Death | 24 Nov 1973 | |
| Burial | ||
| Spouse | Living | F9773 | |
| Marriage | ||
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