
Arved Mathias Woldemar 3-d Graf von Reutern Bar. von Nolcken is your 6th cousin once removed.
You
→ Elza Dzelvite (Grahpe,Grāpe)
your mother → Jahn Grahpe
her father → Baron Arnold Julius von Vietinghoff-Riesch
his father → Juliane Charlotte Lulla von Vietinghoff
his mother → Helene Gertrude von Krüdener
her mother → Gustav Georg von Völckersahm
her father → Sophia Elisabeth von Mengden
his mother → Anna Dorothea Gfin. von Münnich
her sister → Ernst Gustav Graf von Münnich
her son → Katharina* Louise Gfin. von Münnich
his daughter → Baron Gustav* Frommhold von Nolcken
her son → Woldemar Ernst (Vladimir Evstafjevich) 1-st Graf von Reutern Bar. von Nolcken
his son → Michael Herman 2-nd Graf von Reutern Bar. von Nolcken
his son → Arved Mathias Woldemar 3-d Graf von Reutern Bar. von Nolcken
his son
Looking at the profile of the asserted son of Arved,named Boris, you can see that there is no manager to the profile. This indicates, if things were correct, that this profile is added to Geni by the person himself and must be or at least quiet recently was alive. A few years ago the profile of this Boris was managed by Elisabeth Whitehead/Joshua Wood and it was stated that Boris was born 1938 and died 1991. Joshua Wood claims to be the grandson of Boris, so he should know.
Now, if you look at profile of Boris, there is still written in russian that he was born 1938 and died 1991.
I have been in contact with the genealogists of 'Der Verband der Baltischen Ritterschaften' and they and I myself havn't found any information or facts about a son of Arved named Boris.
I doubt this line of descendants as long as it isn't verified.