After the October Revolution, did the Russian aristocrats really wander around the world as the TV series said?

The immediate family members of the romanov royal family were basically strafed by the Red Army with machine guns. A prince with a different surname in the Caucasus and Urals supported the White Army during the Civil War and was executed by the Red Army after the defeat. Survivors were exiled to all parts of the world. Fortunately, I went to London and Paris to be a salon guest for a long time, until the salon owner found them bored and turned to pursue new artists. The hapless princes and nobles went to Shanghai, Harbin, Manzhouli, Hong Kong and other places. Some became bad guys and mentors; Some people became the little lovers of mercenaries, dancers and warlords.