The Albazinians were decendants of Russian Cossacks who defected to the Chinese Empire in the Russia-Qing border wars of the 17th century. This Russo-Chinese ethnic group was never large and most Albazinians seem to have lost their unique identity by 20/21st century.
https://en.wikipedia.org/wiki/Albazinians
How can this group become a thriving minority in China? Can there be a Albazinian Imperial Dynasty?
https://en.wikipedia.org/wiki/Albazinians
Oros Niru - Wikipedia
en.wikipedia.org
How Russian Cossacks became elite troops of the Chinese emperor
They were regarded as some of the best fighters in the Qing Empire and their descendants still live in China today.
www.rbth.com
How can this group become a thriving minority in China? Can there be a Albazinian Imperial Dynasty?