Hi we know that our ancestor was born in Russia was a colonel. He died and his son ended up in France. We don't know how the ancestor connects to the field Marshall as there is a gap in our info but this what we were told. One of my students also had our surname and she said her family were also descendants of him. She was Romanian. She said her grandmother said the family split into a Romanian and a Russian branch. This is all the info I have about this at this time