This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Sergey N. Delvig.jpeg ru author Custom marker PDRusEmpire Uploaded with births portrait photographs deaths thcentury black and white portrait photographs of men at half length thcentury men of Russia Black and white portrait photographs of military people in uniform Delvig family Emigrants from Russia