Grand Admiral a naval rank in one of the highest in the several European navies that use this system, what system are they using?
Military rank Military ranks are a system of hierarchical relationships in armed forces, police, intelligence agencies or other institutions organized along military lines. Usually, uniforms denote the bearer's rank by particular insignia affixed to the uniforms. Ranking systems have been known for most of military history to be advantageous for military operations, in particular with regards to logistics, command, and coordination; as time went on and military operations became larger and more complex, military ranks increased and ranking systems themselves became more complex.
Active Privy Councillor Active Privy Councillor (Russian: действительный тайный советник , deystvitelny tayniy sovetnik) was the civil rank (ru: чин / tsin) in the Russian Empire, according to the Table of Ranks introduced by Peter the Great in 1722. That was a civil rank of the 2nd class and equal to those of General-in-Chief in the Army and Admiral in the Navy. The rank holder should be addressed as "Your High Excellency" (Russian: Ваше Высокопревосходительство , Vashe Vysokoprevoskhoditelstvo). If the Foreign Minister had the rank of the 2nd class, he could be called Vice-Chancellor.