Admiralty
It evolved from *Admiralty Navy War Council, (1909–1912) which in turn became the Admiralty War Staff, (1912–1917) before finally becoming the Admiralty Naval Staff in 1917. It was the former senior command, operational planning, policy and strategy department within the British Admiralty. It was established in 1917 and existed until 1964 when the department of the Admiralty was abolished, and the staff departments function continued within the Navy Department of the Ministry of Defence until 1971 when its functions became part of the new Naval Staff, Navy Department of the Ministry of Defence.
Admiralty in the 16th century
The office of the "Lord High Admiral of England" was first established in 1385 with the title "High Admiral of England, Ireland and Aquitaine" by 1406 the post was now national and permanent the title was re-styled "Lord Admiral of England" during the sixteenth century before becoming known as the "Lord High Admiral" from the seventeenth century onward. He is the titular head of the English Navy. Most have been courtiers or members of the Royal Family, and not professional naval officers. The office of Lord High Admiral is one of the nine English Great Officers of State. His official duties were the "Vice-Admiral of England" created in 1410 initially in charge of civil and judicial administration of the admiralty courts and he served as head of the High Court of Admiralty but also naval operations. In 1545 the Council of the Marine was established to take over responsibilities for civil administration of the navy this was to be directed by a second assistant to the Lord Admiral known as the "Lieutenant of the Admiralty" he assumed the civil responsibilities of the Vice-Admiral of England leaving him to just concentrate on judicial administration.