Everyone here knows the story about Nikolai Yussupov, elder brother of Felix, who was killed in a duel on 5 July 1908.
I notice that he had a cousin, Nikolai, born in 1891, who died shortly before he did, on 22 June 1908. I do not know the place of death (I presume the date is the New Style, else it might even work out as the same as the death of Nikolai Yussupov!).
This Nikolai was his first cousin and a son of Count Nikolai Felixovich Sumarokov-Elston. He had an elder sister, Helen, and younger brother Mikhail (the famous tennis player). I believe the family lived in Europe (mostly Germany) because of their father's poor health.
This Nikolai seems a rather mysterious figure: he is not mentioned in Felix's memoirs (Helen and Mikhail get a passing mention). I have not seen any information on his exact date of birth on family trees, which provide such information on his siblings.
The lack of information might not mean anything, but regarding Romanov/Yussupov/Sumarokov-Elston history in general, one cannot help wondering if there is some specific reason why he does NOT seem to be mentioned anywhere.... Does anyone here have information on Count Nikolai Nikolaevich Sumarokov-Elston (1891-1908)?