1917 - 1991 (74 years)
| Lord Colwyn Iestyn John PHILIPPS, 3rd Viscount St Davids | |
| B: | 30 Jan 1939 |
| D: | 26 Apr 2009 |
| Augusta Victoria Correa y Larra?n Ugarte | |
| M: | 1965 |
Honourable Rowena Frances PHILIPPS 1940-2005 |
| Honourable Rowena Frances PHILIPPS | |
| B: | 1940 |
| D: | 2005 |
|
| Jestyn Reginald Austin Plantagenet PHILIPPS, 2nd Viscount St Davids | |
| B: | 19 Feb 1917 |
| D: | 10 Jun 1991 |
| Doreen Guinness Jowett | |
| M: | 5 May 1938 |
| Elisabeth Joyce Woolf | |
| M: | 15 Oct 1954 |
