The office was created in England late 14th century sometime between 1405/06 and 1412 the two existing older naval commands that of the Admiral of the North and Admiral of the West were unified with this office. During the reign of Henry VIII the English Navy had expanded to a point where it could not be managed by a single Lord High Admiral alone, therefore day-to-day management of the navy was handed over to a committee that later became known as the Navy Board. The navy board had Samuel Pepys as one of its members during the reign of Charles II, and it ran side-by-side with the Board of Admiralty. From the early 17th century onwards, when an individual Lord High Admiral was appointed, there was also a Council of the Lord High Admiral which assisted him to perform some of the duties of the Admiralty. When this office was not occupied by an individual, it was "put into commission" and exercised by a Board of Admiralty headed by a First Lord of the Admiralty; this was the usual arrangement from 1709 until it was merged with the Admiralty in 1832. However, the office of Lord High Admiral, which, except for brief periods during its long history, had remained extant, and was not abolished as an official naval post until 1964. In 1964, the office of First Lord of the Admiralty was also abolished and the functions of the Lords Commissioners of Admiralty were transferred to the new Admiralty Board becoming a sub-committee of the tri-service Defence Council of the United Kingdom. At the same time, the ancient title of Lord High Admiral was then resumed by the sovereign personally. Elizabeth II held the title for the next 47 years, until in 2011 she conferred the office upon her husband, the Duke of Edinburgh as part of the celebrations for his 90th birthday. The Queen chose this title to honour her husband with as he served in the Royal Navy during the Second World War, and gave up a promising naval career to support her as consort.
High Admirals of England, Ireland and Aquitaine 1385 to 1512
Before 1707, a separate office of Lord High Admiral existed for Scotland. Following the Act of Union 1707, all jurisdictions were placed under the office of Lord High Admiral of Great Britain.
The earliest known instructions given to the Lord Admiral to fly command flags were given by King Henry VIII in 1545 the Lord Admiral was ordered to fly the flag of the arms of the King on the top of the main masthead with the flag of the cross of Saint George on the top of the front masthead.
