Greece: Heads of State: 1863-1924 Royal House: Slesvig-Holsten-Sønderborg-Glücksborg Vasilefs ton Ellinon (Βασιλεύς των Ελλήνων) | King of the Hellenes 25 May/6 Jun 1863 - 5/18 Mar 1913 Georgios I (Γεώργιος Αʹ)[1][2] 5/18 Mar 1913 - 30 May/12 Jun 1917 Konstantinos 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) [3] 12/25 Oct 1920 - 15/28 Oct 1920 Eleftherios Kyriakou Venizelos (Ελευθέριος Κυριάκου Βενιζέλος) [4] Antivasilefs (Αντιβασιλεύς) | Regent 15/28 Oct 1920 - 4/17 Nov 1920 Pavlos Theodorou Koundouriotis (Παύλος Θεοδώρου Κουντουριώτης) Vasilomitor Antivasilissa (Βασιλομήτωρ Αντιβασίλισσα) | Queen Mother Regent [5] 4/17 Nov 1920 - 6/19 Dec 1920 Olga (Όλγα) [6] Vasilefs ton Ellinon (Βασιλεύς των Ελλήνων) | King of the Hellenes 4/17 Nov 1920 - 14/27 Sep 1922 Konstantinos I (Κωνσταντίνος Αʹ) (x) 14/27 Sep 1922 - 25 Mar 1924 Georgios II (Γεώργιος Βʹ) [7] Antivasilefs (Αντιβασιλεύς) | Regent 20 Dec 1923 - 14 Apr 1924 Pavlos Theodorou Koundouriotis (Παύλος Θεοδώρου Κουντουριώτης) (x) [8] [1] Baptismal name: Christian Vilhelm Ferdinand Adolf Georg [2] Takes office upon landing at Piraeus, Greece, 18/30 Oct 1863. [3] In informal and some official use: Prothypourgos (Πρωθυπουργός ). [4] In office as Proedros tou Ypourgikou Symvouliou 14/27 Jun 1917 - 4/17 Nov 1920. [5] Pending the resumption of the throne by Konstantinos I, who arrives in Athens 6/19 Dec 1920. [6] Original name and title (Russian): velikaja knjažna Ol'ga Konstantinovna (великая княжна Ольга Константиновна) [7] Ceased to exercise the functions of office upon leaving national territory 19 Dec 1923; all references to Vasilefs ton Ellinon in legislation and court decisions are removed 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 25 Mar 1924. [8] Enters office upon swearing-in 20 Dec 1923, acting for the absent Georgios II, and continues to hold the office after the deposition of the dynasty 25 Mar 1924. Last updated on: 22 Jan 2016 21:00:00
