Field marshal (Russian Empire)
Field marshal was, with the exception of Generalissimo, the highest military rank of the Russian Empire. It was a military rank of the 1st class in the Imperial Russian Army and equal to those of Chancellor and Active Privy Councillor, 1st class in civil service, and General Admiral in the Imperial Russian Navy. After the Russian Revolution of 1917 the rank was abolished, alongside the Table of Ranks. In 1935 however, the Red Army introduced the equivalent rank of "Marshal of the Soviet Union" as the highest military rank of the Soviet Union, when ranks were restored under Stalin's rule.
The Field Marshals' Hall of the Winter Palace. Russian cuirassiers can be seen observing the paintings.
Uniform of a Russian General-feldmarshal (1793).
Image: Boris Sheremetyev by I.Argunov (1768, Kuskovo)
Image: A. Menshikov (Kuskovo)
General admiral or Admiral general was first a Dutch then Danish, German, Russian, Portuguese, Spanish and Swedish naval rank. Its historic origin is a title high military or naval dignitaries of early modern Europe sometimes held, for example the (nominal) commander-in-chief of the Dutch Republic's navy.
Maurits van Oranje, first Generaladmiral in history