Frederick Charles Louis Constantine, Prince and Landgrave of Hesse, Friedrich Karl Ludwig Konstantin Prinz und Landgraf von Hessen-Kassel in German, was the brother-in-law of the German Emperor Wilhelm II. He was elected King of Finland on 9 October 1918, but renounced the throne on 14 December 1918. During his brief reign he was known in Finnish as Frederik Kaarle I, King of Finland. |
Reigned as | In Country | From | To | Coins Issued | |
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Frederik Kaarle I (King Frederick Charles I) | Finland | 9 October 1918 | 14 December 1918 |
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