RUBINSTEINs from Kharkov #general

Mendelssohn <mendelssohn@...>

Dear genners,
Having a sister of Ida RUBINSTEIN in my family-tree (and a great interest
for music too: Anton Rubinstein, Nicolai etc..) I would like to find
informations on the genealogy of this family >from Kharkov (Russia) who
lived in St Petersburg at the end of the 19th century.
Thanks in advance for any help.
Florence Mendelssohn, Paris