There are movies made about the girls performing at the Paralympic Games and the parents who adopted them. But no one notices them in Russia.
This and 10 other silly questions answered by the Arctic explorer Alexander Oboimov.
Now aged 71, Ted Kohner, son of Chaliapin's daughter Tatiana, is making his first visit from the US to the motherland of his iconic opera singer grandfather.
Russian family to adopt child born in April after his case was highlighted around the world.
Avelina Antsiferova fulfilled her life's dream when she sat in cockpit of wartime Douglas C-47, 69 years after kissing her papa goodbye for last time.