The Prince Louis Ferdinand Of Prussia And Duchess Kyra Of Russia - May 1938 [Getty Images]

UNSPECIFIED - MAY 01: The Prince Louis Ferdinand Of Prussia And Duchess Kyra Of Russia - May 1938 (Photo by Keystone-France/Gamma-Keystone via Getty Images) — see more

UNSPECIFIED - MAY 01: The Prince Louis Ferdinand Of Prussia And Duchess Kyra Of Russia - May 1938 (Photo by Keystone-France/Gamma-Keystone via Getty Images)

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