
1) City of Russia 2) City in Asia 3) City of Asia 4) City in Russia
Found on
https://www.crosswordclues.com/clue/demidov

The Demidov family (Деми́довы), also Demidoff, was an influential Russian merchant, industrialist and noble family, possibly second only to the Tsar himself in wealth during the late 18th and early 19th centuries. The family still exists, and some descendants live in Finland. ==History== Their progenitor, Demid Antufiev, was a free blacks...
Found on
http://en.wikipedia.org/wiki/Demidov
[inhabited locality] Demidov (Деми́дов) is the name of several inhabited localities in Russia. ...
Found on
http://en.wikipedia.org/wiki/Demidov_(inhabited_locality)
No exact match found.