about dna =: sorry to hear that. I wish there was a way other than personal memories and documents. Felix Sr's daughter tatiana is 88, and losing memory. We need to secure as much as possible before it's too late.
about Felix being an adopted child: if anyway dna match cannot be checked, then it doesn't matter. Personally i have no opinion on this issue.
I have more information tonight. I will translate from French a personal communication with Graziella.
"if my memory is right, my grandmother [Zinaida Gregoriev] emigrated to Italy to follow my grandfather on his request. She lived next street [in Rome] . At his death, his son Felix was committed to take care his half brother and [half] sister, which he did not do for a long time by the way since in the mean time he went to Paris and other cities such as Calvi where he purchased an estate which he resold at loss as all the rest. My grandmother went to live in Venice but Olivier fell ill and Felix suggested her to come and live in Paris, which she did. She lived in Saint germain en laye but Felix one day told her that he could not take financial care of his half brother, and as he [Olivier] was sick, my grandmother went to live in Nice. Since that date, she did not get any contact from [or with]
Felix, and this for a good reason , he had spent all his parents's fortune and had been swindled on every side.
My grandmother has always managed by herself, she lived in Italy with the jewels offered by Félix Y.S-E and then my uncle and my mother when they grew up, started to have a working life.
I can't tell if my grandfather had one or two strokes All i know is that he never refused a good meal [c'était un bon vivant qui ne crachait pas sur la bonne chair] he enjoyed Champagne annd spent all his time in the officers'mess in Rome.
My grandmother is buried in the russian cemetery of Caucade in Nice, .as well as the brother of Felix Y S-E
For precise dates i would have to ask from my mother. As for my first name, i think my mother was influenced by her days in Italy...."
There's more available but iit will relate to another "chapter".
So i think Felix did not end borrowing from Zinaida G, but could not fulfill his obligations demanded by his father. In that sense, Felix owed them. Anyway i will check again. Iin any case this part of the family seems to hold Felix Jr in low esteem.
