skos:altLabel | - Prince of Hesse
- Frederick Charles
- Friedrich Karl
- Landgrave
- Prince Frederick Charles
- Frederic Charles
- Frederick Charles I
- Frederick Charles, Landgrave of Hesse
- Frederick Charles, Prince of Hessen
- Frederick Charles, Prince of Hessen-Kassel
- Fredrik Kaarle
- Friedrich Karl von Hessen
- Prince Frederick Charles of Hesse, King-elect of Finland
- Landgrave Frederick Charles of Hesse-Kassel
- Prince Freidrich Karl of Hesse
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