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.
Lieutenant of the Admiralty
The Lieutenant of the Admiralty (or Lieutenant-Admiral) is first found in about the middle of the 15th century, as the Deputy or Assistant to the Lord High Admiral of England. In 1545 the Lieutenant of the Admiralty presided over the Council of the Marine. In 1546, when the Navy Board was formed, the Lieutenant of the Admiralty was appointed as its Head , but this ceased in 1564 when the Treasurer of the Navy became the Head of the Board. The post was revived in 1604 when it appears to have been given as a mark of honourable distinction - with a salary of -£100p.a., including two clerks and certain travelling expenses. In 1672 the post of Lieutenant of the Admiralty was merged into that of Vice-Admiral of England until 1707. The title became part of the office of the Vice-Admiral of Great Britain until 1800. From 1801 the office was joined with that of Vice-Admiral of the United Kingdom, and was the second most powerful position in the Royal Navy.