1773 - 
1882-1976
| Beatrix O'Brien | |
| *: | 26 Dez 1882 |
| +: | 1976 |
| Rom, I | |
1874-1937
| Guglielmo Marconi | |
| *: | 25 Apr 1874 |
| Bologna, I | |
| oo: | 16 Mrz 1905 |
| London | |
| +: | 20 Jul 1937 |
| Rom, I | |
1839-
| Edward O'Brien | |
| *: | 14 Mai 1839 |
| Dublin | |
1854-
| Ellen Harriet White | |
| *: | 11 Sep 1854 |
1801-
| Lucius.III O'Brien | |
| *: | 1801 |
-1852
| Mary FitzGerald | |
| oo: | 21 Feb 1837 |
| +: | 26 Mai 1852 |
|
1773-
| Edward O'Brien | |
| *: | 1773 |
