Pyotr Dolgorukov (historian)

His father was the general Vladimir Petrovich Dolgorukov.

He moved to Paris in 1859 and refused to return to Russia.

As a result, he was deprived by the authorities of all titles and property and declared a permanent exile.

After Dolgorukov's death, his archives were acquired by the Russian government.

Some of Dolgorukov's chief works include: (in Russian) Долгоруков.