Constantine I was King of Greece from 18 March 1913 to 11 June 1917 and again from 19 December 1920 to 27 September 1922. The eldest son of George I of Greece, he succeeded to the throne following his father's assassination in 1913.
Key Facts
| Subject | Constantine I of Greece |
| Category | King of Greece (1913–17; 1920–22) |
| Reading time | 1 min · Advanced |
| Key date | 1913 |
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Reference material for this entry is drawn from the open encyclopedic record, including Wikipedia , available under the CC BY-SA 4.0 license. Images are credited individually beside each photo.