Pyotr Stepanovich Deynekin was a Russian military general. He was born in Morozovsk, Russian SFSR, Soviet Union. In 1997, he was awarded the Hero of the Russian Federation. Deynekin's rank was General of the army. Also he had the federal state civilian service rank of 1st class Active State Councillor of the Russian Federation.
Prince Pyotr Vladimirovich Dolgorukov (1816–1868) was a Russian historian and journalist known for his genealogical research and as a critic of the Imperial Russian government. His father was the general Vladimir Petrovich Dolgorukov.