| Male Prince Nicholas of_Greece |
| Birth | 1872 | |
| Death | 1938 | |
| Burial | ||
| Marriage | 1902 | |
| Father | King of Greece William George_I of_the_Hellenes Oldenburg | F75 Group Sheet | |
| Mother | Princess Olga Constantinovna | F75 Group Sheet | |
| Female Grand Duchess Helen Vladimirovna of_Russia Romanov |
| Birth | 1882 | |
| Death | 1957 | |
| Burial | ||
| Father | Grand Duke Vladimir Romanov | F47 Group Sheet | |
| Mother | Grand Duchess Marie Pavlovna | F47 Group Sheet | |
| Female Princess Marina of_Greece |
| Birth | 30 Nov 1906 | Athens,Greece |
| Death | 1968 | Kensington,Palace,,England |
| Burial | ||
| Spouse | Duke of Kent George Edward Alexander Windsor | F17 | |
| Marriage | 29 Nov 1934 | Westminster,Abbey,London,England |