Ivan Grigoryevich (1726-1797) - Count, younger brother of Peter
Grigoryevich and Zakhar Grigoryevich, son of Count Grigory Petrovich Tchernyshov
(1670-1745) General-in-Chief; and his wife Evdokia Ivanovna, née
Rzhevskaya, (1693-1747). After graduating from military school in 1741
was sent to serve in Russian Embassy in Copenhagen. Married a cousin of
the Empress Elizaveta Petrovna, Countess E. O. Yefimovskaya. Chamberlain
from 1755. Chief Prosecutor of Senate from 1760. Catherine
II gave him the rank of General-Lieutenant and appointed to Admiralty.
In 1764, he was appointed the Commander of Fleet. In 1768-1770, was the
Ambassador of Russia in London. Pavel
I appointed him the President of Admiralty in the rank of Field-Marshal
of Fleet in 1796. Died in Rome, buried in St. Peterburg.
His second wife was Countess Anna Alexeevna Tchernyshova, née Islenyeva, died in 1747.
See: Dmitry Levitzky. Portrait of Count I. G. Tchernyshov.
Stefano Torelli. Portrait of Countess Anna Alexeevna Chernysheva.
His son Tchernyshov, Grigory Ivanovich (1762-1831), Count, Ober-Schenk,
was married to Elisabeth Petrovna Kvashnina-Samarina (1773-1828).
See: Louise-Elisabeth Vigée-Lebrun. Count Grigory Ivanovich Tchernyshov Holding a Mask.