Question: Admiral Sir Charles Saunders, was a Royal Navy officer, and he later became which professional head of the United Kingdom's Royal Navy and the whole Naval Service, and originally the title was the Senior Naval Lord to the Board of Admiralty when the post was created in 1689?

Her Majesty's Naval Service, also known as the Senior Service, is the United Kingdom's naval warfare and maritime service.  It consists of the Royal Navy, Royal Marines, Royal Naval Reserve, Royal Marines Reserve and Naval Careers Service.  The term Naval Service should be distinguished from the "UK Naval Services", which consist of the Naval Service and the Merchant Navy.  The Naval Service as a whole falls under the command of the Navy Board, which is headed by the First Sea Lord.  This position is currently held by Admiral Sir Phillip Jones (appointed April 2016).  The Defence Council delegates administration of the Naval Service to the Admiralty Board, chaired by the Secretary of State for Defence. <SEP> Admiral Sir Charles Saunders, KB (c. 1715 – 7 December 1775) was a Royal Navy officer.  He commanded the fourth-rate HMS "Gloucester" and led her in action at the Second Battle of Cape Finisterre in October 1747 during the War of the Austrian Succession.  He later became Senior Naval Lord and then First Lord of the Admiralty.  After serving as Commander-in-Chief, Mediterranean Fleet, he took command of the fleet tasked with carrying James Wolfe to Quebec in January 1759 and consolidated the dead general's victory after the Battle of the Plains of Abraham in September 1759 by devoting great energy to keeping the British Army, now under the command of Colonel George Towshend, well supplied during the Seven Years' War. <SEP> The First Lord of the Admiralty, or formally the Office of the First Lord of the Admiralty, was the political head of the Royal Navy who was the government's senior advisor on all naval affairs and responsible for the direction and control of Admiralty Department as well as general administration of the Naval Service of the United Kingdom, that encompassed the Royal Navy, the Royal Marines and other services.  It was one of the earliest known permanent government posts, apart from being the political head of the Royal Navy the post holder simultaneously held the title of the President of the Board of Commissioners for Exercising the Office of Lord High Admiral (known as the Board of Admiralty).  The office of First Lord of the Admiralty existed from 1628 until it was abolished when the Admiralty, Air Ministry, Ministry of Defence and War Office were all merged to form the new Ministry of Defence in 1964. <SEP>  Originally the title was the Senior Naval Lord to the Board of Admiralty when the post was created in 1689.  The office holder was then re-styled First Naval Lord from 1771. The First Sea Lord and Chief of Naval Staff (1SL/CNS) is the professional head of the United Kingdom's Royal Navy and the whole Naval Service.  The concept of a professional "First Naval Lord" was introduced in 1805 and the title of the First Naval Lord was changed to "First Sea Lord" on the appointment of Sir Jackie Fisher in 1904.  From 1923 onward, the First Sea Lord was a member of the Chiefs of Staff Committee; he now sits on the Defence Council and the Admiralty Board.