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 court
From its inception in 1483 until 1657 the Court sat in a disused church in Southwark, and from then until 1665 in Montjoy House, a private premises leased from the Dean of St Paul's Cathedral. In order to escape the Great Plague of London in 1665, the Court was briefly relocated to Winchester and then to Jesus College at Oxford University. The plague threat having subsided by 1666, the Court returned to London and until 1671 was located at Exeter House on The Strand before returning to Montjoy House near St Paul's.