The Sheremetev family was one of the wealthiest and most influential noble families in Russia descending from Feodor Koshka who was of Old Prussian origin. The family held many high commanding ranks in the Russian military, governorships and eventually the rank of Count of the Russian Empire. Notable members of the family include:
Yelena Sheremeteva, third wife of Tsarevich Ivan Ivanovich, son of Ivan the Terrible.
Fedor Sheremetev cousin of Tsar Michael I and head of government in 1613–18 and 1642–46
Wikipedia https://en.wikipedia.org/wiki/Sheremetev
Coordinates 55°45'22.701" N 37°35'20.031" E
