Battle of Sarantaporo
Breaks through Ottoman defences in Thessaly.
Role range: 1912-1913 – 1912-1913
Historical biography archive · Updated 2026-11-03
Constantine Constantine I Biography and Timeline
Follow Constantine Constantine I through 51 dated historical records for Greece.
Constantine Constantine I, historical timeline
A chronological timeline drawn from matching World History Database records.
51Distinct records
1 of 2Page
1912–1913Years on this page
1912
Battle of Elasson
Defeats the Turks in the Vardarrr Valley
Role range: 1912-1913 – 1912-1913
Invasion of Thessaloniki
After the liberation of Thessaloniki, the Greek army links up with the Serb army north and they turns west
Role range: 1912-1913 – 1912-1913
Invasion of Ottoman Territory
Members of the Balkan League attack Turkey and win quick victories
Role range: 1912-1913 – 1912-1913
Battle of Yenidje
Overwhelms the Turks and moves on to Salonika
Role range: 1912-1913 – 1912-1913
Capture of Salonika
Accepts the surrender of Salonika.
Role range: 1912-1913 – 1912-1913
Capture of Salonika
The Turkish garrison of 20,000 surrenders and Constantine occupies the city
Role range: 1912-1913 – 1912-1913
Ceasefire
Following a ceasefire in December between the Ottoman Empire and Bulgaria, Serbia and Montenegro, the Turkish fleet twice exited the Dardanelles but was twice defeated in the battles of Elli and Lemnos
Role range: 1912-1913 – 1912-1913
Epirus Campaign
Turns Greek forces toward Ioannina after Salonika.
Role range: 1912-1913 – 1912-1913
Rule of Aegean
Following a ceasefire in December between the Ottoman Empire and Bulgaria, Serbia and Montenegro, the Turkish fleet twice exited the Dardanelles but was twice defeated in the battles of Elli and Lemnos
Role range: 1912-1913 – 1912-1913
Battle of Kastoria
One of Constantine's flank detachments is defeated by the Turks
Role range: 1912-1913 – 1912-1913
Battle of Monastir
One of Constantine's flank detachments is defeated by the Turks
Role range: 1912-1913 – 1912-1913
Invasion of Macedonia
Greece lands forces in the Halkidiki peninsula while the main force of the army attacks from Thessaly into Macedonia through the Sarantaporo straight
Role range: 1912-1913 – 1912-1913
Invasion of Macedonia
Leads a Greek Army into Macedonia to attack the Turks in the Vardarrr Valley
Role range: 1912-1913 – 1912-1913
Rule of Aegean
Greek naval victories secure control of the Aegean.
Role range: 1912-1913 – 1912-1913
Rule of Lemnos
The Greek Navy is free to liberate the islands of the Aegean, starting with Lemnos which was used as a base to monitor the Dardanelles
Role range: 1912-1913 – 1912-1913
1913
Capture of Ioannina
The Turkish garrison of 30,000 falls to Prince Constantine of Greece
Role range: 1912-1913 – 1913-1917
Capture of Ioannina
Captures Ioannina from Ottoman forces.
Role range: 1912-1913 – 1912-1913
Capture of Adrianople
A combined Bulgar-Serb force captures Adrianople
Role range: 1912-1913 – 1913-1917
Alliance two and an agreement for mutual diplomatic support
Greece and Serbia signed a Treaty of mutual defence against an attack, a mutual border is agreed between the two and an agreement for mutual diplomatic support
Role range: 1913-1913 – 1913-1917
Balkan League
Greece and Serbia signed a Treaty of mutual defence against an attack, a mutual border is agreed between the two and an agreement for mutual diplomatic support
Role range: 1913-1913 – 1913-1917
Battle of Kilkis-Lahanas
The Greek army counterattacks and defeats the Bulgarians at Kilkis-Lahanas
Role range: 1913-1913 – 1913-1917
Mutual Defence Treaty
Greece and Serbia signed a Treaty of mutual defence against an attack, a mutual border is agreed between the two and an agreement for mutual diplomatic support
Role range: 1913-1913 – 1913-1917
Crete Settlement
Benefits from the Ottoman renunciation of sovereignty over Crete in favour of the Balkan allies.
Role range: 1912-1913 – 1913-1917
Alliance Bulgaria and Serbia and Greece
An anti Bulgarian Serbian-Greek alliance is signed
Role range: 1912-1913 – 1913-1917
Serbo-Greek Alliance
Supports alliance with Serbia against Bulgaria.
Role range: 1913-1913 – 1913-1917
Battle of Kilkis-Lahanas
Defeats Bulgarian forces in Macedonia.
Role range: 1913-1913 – 1913-1917
Alliance Constantine Constantine I and Bulgaria over the Macedonia and Thrace border
Greece and Serbia break their alliance with Bulgaria over the Macedonia and Thrace border
Role range: 1912-1913 – 1913-1917
Declaration of War
The Macedonia and Thrace border dispute with Bulgaria causes the 2nd Balkan War
Role range: 1912-1913 – 1913-1917
Capture of Serres
Greek troops enter Serres after Bulgarian withdrawal.
Role range: 1913-1913 – 1913-1917
Alliance Constantine Constantine I and Serbia and declares war on Bulgaria
Romania, Greece, Montenegro, and Turkey immediately side with Serbia and declares war on Bulgaria, which found itself completely isolated
Role range: 1913-1913 – 1913-1917
Battle of Doiran
The Greeks defeat the Bulgarian army in the battles of Doiran and Mt. Beles before themselves being defeated at the Kresna straights
Role range: 1913-1913 – 1913-1917
Battle of Kresna
The Greeks defeat the Bulgarian army in the battles of Doiran and Mt. Beles before themselves being defeated at the Kresna straights
Role range: 1913-1913 – 1913-1917
Battle of Mount Beles
The Greeks defeat the Bulgarian army in the battles of Doiran and Mt. Beles before themselves being defeated at the Kresna straights
Role range: 1913-1913 – 1913-1917
Ceasefire
The Greeks offered a ceasefire and the Bulgarians accept due to the danger posed by the Romanian army in the north
Role range: 1913-1913 – 1913-1917
Declaration of War
Romania, Greece, Montenegro, and Turkey immediately side with Serbia and declares war on Bulgaria, which found itself completely isolated
Role range: 1913-1913 – 1913-1917
Peace
The Greeks offered a ceasefire and the Bulgarians accept due to the danger posed by the Romanian army in the north
Role range: 1913-1913 – 1913-1917
Rule of Crete
Crete and Salonika were definitively assigned to Greece
Role range: 1913-1913 – 1913-1917
Rule of Dodecanese
Greece protested Italy's annexation of the Dodecanese
Role range: 1913-1913 – 1913-1917
Rule of Salonika
Crete and Salonika were definitively assigned to Greece
Role range: 1913-1913 – 1913-1917
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.