| Margarita Oldenburg (maid. name of Greece and Denmark) | |
| B: | 18 Apr 1905 |
| Mon Repos, Isle of Kerkira, Corfu, Greece | |
| D: | 24 Apr 1981 |
| Bad Wiessee, Miesbach, Bayern, Germany | |
| Theodora Oldenburg Von Danemark |
| Theodora Oldenburg Von Danemark | |
| B: | 13 May 1906 |
| Athínai, Attiki, Attiki, Greece | |
| D: | 16 Oct 1969 |
| Büdingen, Merzig-Wadern, Saarland, Germany | |
| Cecilie ( Princess Cecilie of Greece and Denmark) Oldenburg | |
| B: | 22 Jun 1911 |
| Tatoi, Athínai, Attiki, Greece | |
| D: | 16 Nov 1937 |
| Steene, Ostend, Belgium | |
| Sophie Oldenburg |
| Sophie Oldenburg | |
| B: | 26 Jun 1914 |
| Villa Mons Repos, Corfu, Ionian Islands, Greece | |
| D: | 3 Nov 2001 |
| Munich, Stadt Munchen, Bayern, Germany | |
| Andrew (Prince of Greece and Denmark) OLDENBURG MONTBATTEN | |
| B: | 2 Feb 1882 |
| Athínai, Attiki, Attiki, Greece | |
| D: | 3 Dec 1944 |
| Monte Carlo, Monaco | |
| Princess Alice Victoria Elisabeth Of Battenberg Mountbatten | |
| B: | 25 Feb 1885 |
| Windsor Castle, Berkshire, , England | |
| M: | 7 Oct 1903 |
| Hesse, Darmstadt, Hessen, Germany | |
| D: | 5 Dec 1969 |
| London, Buckinghamshire, , England | |
| Olga Constantinovna Princess of Greece Romanov | |
| B: | 3 Sep 1851 |
| Pavlovsk, Altai Mountains, Russia | |
| D: | 18 Jun 1926 |
| Rome, Roma, Lazio, Italy | |
| William I George Christain (King of Greece ) Oldenburg | |
| B: | 24 Dec 1845 |
| København, Kobenhavn, Denmark | |
| M: | 1867 |
| Winter Palace, St Petersburg, Russia | |
| D: | 18 Mar 1913 |
| Thessaloníki, Thessaloniki, Central Macedonia, Greece | |
|
| Konstantin Nicholaievich Romanov |
| Konstantin Nicholaievich Romanov | |
| B: | 21 Sep 1827 |
| St Petersburg, Russia | |
| D: | 25 Jan 1892 |
| Pavlovsk, Saint Petersburg, Russia | |
| Princess Alexandra Of Saxony -Altenburg |
| Princess Alexandra Of Saxony -Altenburg | |
| B: | 08 Jul 1830 |
| Altenburg, Ahrweiler, Rheinland-Pfalz, Germany | |
| M: | 11 Sep 1848 |
| St Petersburg, Russia | |
| D: | 23 Jun 1911 |
| St Petersburg, Russland | |