The Russian Empire was compromised of a vast amount of lands, so subsequently there are dozens of different ethnicity's across it including the Bashkirs, Yakuts, Nogais, and etc.
Answer: The answer should be the Danube, the Volga, the Loire, the Rhine and the Elbe
Explanation: Europe is a large region, with several major rivers that connect its many countries!
It would be hobo or homeless the people that travel an did not settle in one place