Constantine I (King of Greece from 1913 to 1917 and from 1920 to 1922) (left) with Alexander I (King of Greece from 1917 - 1920)

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Photo credit: © World History Archive / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: alexander, archival, archive, constantine, greece, historical, history, king, monarch, war, world, wwi