Reason WHY Russian royalty lives in 1930s Europe
Briefly, any royals or nobility from Russia FLED to escape the Communists. Usually, any known royal person would be murdered or imprisoned...
Therefore, you would find members of the Romanov royal family scattered in free countries..and maybe---if they were unable to carry any wealth out (like jewelry, etc.) you might find a Royal Doorman.....in 1930s Europe or elsewhere.