Greece: Kings: 1863-1924
Royal House: Slesvig-Holsten-Sønderborg-Glücksborg |
|
| Vasileus tōn Hellēnōn (Βασιλεύς των Ελλήνων) | King of the Hellenes | |
| 18/30 Oct 1863 - 5/18 Mar 1913 | Geōrgios I (Γεώργιος Αʹ)[1] |
| baptized: Christian Vilhelm Ferdinand Adolf Georg | |
| 5/18 Mar 1913 - 30 May/12 Jun 1917 | Kōnstantinos I (Κωνσταντίνος Αʹ) |
| 30 May/12 Jun 1917 - 12/25 Oct 1920 | Alexandros (Αλέξανδρος) |
| Ypourgikon Symvoulion: Proedros tou Ypourgikou Symvouliou (Υπουργικόν Συμβούλιον: Πρόεδρος του Υπουργικού Συμβουλίου) | Council of Ministers: President of the Council of Ministers (ex officio) | |
| 12/25 Oct 1920 - 15/28 Oct 1920 | Eleutherios Kyriakou Venizelos (Ελευθέριος Κυριάκου Βενιζέλος) [2] |
| Antivasileus (Αντιβασιλεύς) | Regent | |
| 15/28 Oct 1920 - 4/17 Nov 1920 | Paulos Theodōrou Kountouriōtēs (Παύλος Θεοδώρου Κουντουριώτης) |
| Vasilomētōr Antivasilissa (Βασιλομήτωρ Αντιβασίλισσα) | Queen Mother Regent | |
| 4/17 Nov 1920 - 6/19 Dec 1920 | Olga (Όλγα) |
| original name and title (Russian): velikaja knjažna Ol'ga Konstantinovna (великая княжна Ольга Константиновна) | |
| Vasileus tōn Hellēnōn (Βασιλεύς των Ελλήνων) | King of the Hellenes | |
| 6/19 Dec 1920 - 14/27 Sep 1922 | Kōnstantinos I (Κωνσταντίνος Αʹ) |
| 14/27 Sep 1922 - 19 Dec 1923 | Geōrgios II (Γεώργιος Βʹ) [4] |
| Antivasileus (Αντιβασιλεύς) | Regent | |
| 20 Dec 1923 - 14 Apr 1924 | Paulos Theodōrou Kountouriōtēs (Παύλος Θεοδώρου Κουντουριώτης) |
- Prince Vilhelm of Denmark was elected King of the Hellenes by the Greek National Assembly (Ethnikē tōn Ellēnōn Syneleusis | Εθνική των Ελλήνων Συνέλευσις) at the session held on 18/30 Mar 1863 in Athens. He accepted the crown at the meetng with a Greek deputation in Copenhagen on 25 May/6 Jun 1863, landed at Piraeus, Greece, on 18/30 Oct 1863 and took the oath as king on 19/31 Oct 1863.
- In office as President of the Council of Ministers 14/27 Jun 1917 - 4/17 Nov 1920.
- Kōnstantinos arrived to Athens on 6/19 Dec 1920.
- Geōrgios II left Greece on 19 Dec 1923; all references to the King of the Hellenes in legislation and court decisions were removed on 15 Mar 1924 in accordance with a resolution of the Council of Ministers; formal deposition of the Glücksburg dynasty is declared by the Constituent Assembly on 25 Mar 1924.