I am looking for information or relations to (Count) Admiral Evfimiy Vasilievich Poutiatine, who first in Russian History signed in Japan the Treaty in 1855 . He was the first who successfully established a trade and diplomatic relations with Japan.
He married a great great aunt in England and then moved to St Petersburg, then Paris.
I am eager to find out more about his offspring. I know some of them moved to England.
Any help greatly appreciated.