Question: When was Peeter Volkonski's father born?
Sentence (from "Peeter Volkonski"): Peeter Volkonski is a son of harpsichordist and composer Prince Andrei Volkonsky, and a great-great-great-grandson of Prince Pyotr Mikhailovich Volkonsky, being thus a descendant of a princely Rurikid family.
Relevant evidence: Yes