Birth of Constantine I
Birth of Constantine I, eldest son of George I
Role range: 1913-1917
Historical biography archive · Updated 2026-11-03
Constantine I Biography and Timeline
Follow Constantine I through 32 dated historical records for Greece.
Constantine I, historical timeline
A chronological timeline drawn from matching World History Database records.
32Distinct records
1 of 1Page
1868–1923Years on this page
1868
1889
Marriage
Marries Sophia, sister of Kaiser William II
Role range: 1913-1917
1909
Coup
The Military League a group of Greek officers takes action against the Government to reform their countrys national Government and reorganize the army
Role range: 1913-1917
Exile of Constantine I
Forced into exile by army officers
Role range: 1913-1917
Military League
The Military League a group of Greek officers takes action against the Government to reform their countrys national Government and reorganize the army
Role range: 1913-1917
National Government
The Military League a group of Greek officers takes action against the Government to reform their countrys national Government and reorganize the army
Role range: 1913-1917
1910
Constitution of Greece
Venizelos persuades the king to revise the constitution and asks the Military League to disband in favor of a National Assembly, in March 1910 the Military League dissolves itself
Role range: 1913-1917
Military League
Venizelos persuades the king to revise the constitution and asks the Military League to disband in favor of a National Assembly, in March 1910 the Military League dissolves itself
Role range: 1913-1917
National Assembly
Venizelos persuades the king to revise the constitution and asks the Military League to disband in favor of a National Assembly, in March 1910 the Military League dissolves itself
Role range: 1913-1917
1913
Succession
Succeeds as King of Greece in the newly occuppied city of Salonika
Role range: 1913-1917
Treaty of London
Greece accepts the peace settlement ending the First Balkan War and shares in the Ottoman cession of European territory west of the Enos-Midia line.
Role range: 1912-1913 – 1913-1917
Greek Entry into the War
Leads Greek forces against Bulgaria after the outbreak of war.
Role range: 1913-1913
Death of Constantine I
Death of George I, assassinated
Role range: 1913-1917
Rule of Samos
The Greek fleet raises the Greek flag on Samos
Role range: 1913-1917
1914
Neutrality
Greece is forced to remain neutral because of Allied naval power
Role range: 1914-1918 – 1913-1917
1915
Election
Venizelos wins the election & is returned to power
Role range: 1914-1918 – 1913-1917
Siege of Salonika
Urges the Germans to invade Greece & recapture Salonika from the Allies
Role range: 1914-1918 – 1913-1917
Battle of Dardanelles
Venizelos wishes to send 3 Greek Divisions to the Dardanelles Constantine refuses. Venizelos resigns over Constantines policy
Role range: 1914-1918 – 1913-1917
1916
Capture of Fort Rupel
Bulgaria captures Fort Rupel & enters Macedonia, a threat to the Allies
Role range: 1914-1918 – 1913-1917
Capture of Kavalla
Bulgaria captures the port of Kavalla
Role range: 1914-1918 – 1913-1917
Siege of Athens
Greek royalist troops attack an Allied landing party
Role range: 1914-1918 – 1913-1917
Government
Venizelos forms a rival Government in Crete & Salonika with Allied support
Role range: 1914-1918 – 1913-1917
1917
Abdication
Abdicates in favour of his younger son Alexander
Role range: 1913-1917
Capture of Athens
The Allies occupy Athens to counter Constantines support for the Central Powers
Role range: 1914-1918 – 1913-1917
1920
Death of Constantine I
Death of Alexander, his younger son who was ruling Greece
Role range: 1913-1917
Election
Constantine I returns to Greece after the defeat of Venizrlos at the election
Role range: 1920-1922
Exile of Constantine I
Constantine I returns to Greece after the defeat of Venizrlos at the election
Role range: 1920-1922
Plebiscite
Succeeds as King of Greece, restored after a plebiscite
Role range: 1920-1922
Restoration
Succeeds as King of Greece, restored after a plebiscite
Role range: 1920-1922
Succession
Succeeds as King of Greece, restored after a plebiscite
Role range: 1920-1922
1922
Abdication
Abdicates for the 2nd time after the Greek defeat by Turkey
Role range: 1920-1922
1923
Death of Constantine I
Death of Constantine I
Role range: 1920-1922
Records, sources and methodology
These dates and descriptions come from the historical_events database. Exact duplicate records have been collapsed. Names are grouped by the country, Name 2 and Name 1 fields; records with missing Name 2 cannot be reliably assigned to an individual biography. Check the underlying sources before formal citation.