Question: When was the naval post of Commander-in-Chief of the county containing Drayton, Hampshire abolished?

full_context: Document 1: Supreme Commander of the Swedish Armed Forces: The Supreme Commander is, apart from the honorary ranks held by the King of Sweden and in the past other members of the Swedish Royal Family, by unwritten convention normally the only professional military officer on active duty to hold the highest rank (a four-star General or Admiral). An exception was made 2009-2014 when Håkan Syrén was chairman of the European Union Military Committee.
Document 2: Southampton: In the 2001 census Southampton and Portsmouth were recorded as being parts of separate urban areas, however by the time of the 2011 census they had merged to become the sixth largest built-up area in England with a population of 855,569. This built-up area is part of the metropolitan area known as South Hampshire, which is also known as Solent City, particularly in the media when discussing local governance organisational changes. With a population of over 1.5 million this makes the region one of the United Kingdom's most populous metropolitan areas.
Document 3: Canadian Armed Forces: The Canadian Joint Operations Command is an operational element established in October 2012 with the merger of Canada Command, the Canadian Expeditionary Force Command and the Canadian Operational Support Command. The new command, created as a response to the cost-cutting measures in the 2012 federal budget, combines the resources, roles and responsibilities of the three former commands under a single headquarters.
Document 4: Ministry of Supply: The Ministry of Supply was abolished in late 1959 and its responsibilities passed to the Ministry of Aviation, the War Office and the Air Ministry. The latter two ministries were subsequently merged with the Admiralty to form the Ministry of Defence.
Document 5: Southampton: Southampton as a Port and city has had a long history of administrative independence of the surrounding County; as far back as the reign of King John the town and its port were removed from the writ of the King's Sheriff in Hampshire and the rights of custom and toll were granted by the King to the burgesses of Southampton over the port of Southampton and the Port of Portsmouth; this tax farm was granted for an annual fee of £200 in the charter dated at Orival on 29 June 1199. The definition of the port of Southampton was apparently broader than today and embraced all of the area between Lymington and Langstone. The corporation had resident representatives in Newport, Lymington and Portsmouth. By a charter of Henry VI, granted on 9 March 1446/7 (25+26 Hen. VI, m. 32), the mayor, bailiffs and burgesses of the towns and ports of Southampton and Portsmouth became a County incorporate and separate from Hampshire.
Document 6: United States Marine Corps: After the war, the Marine Corps fell into a malaise that ended with the appointment of Archibald Henderson as its fifth Commandant in 1820. Under his tenure, the Corps took on expeditionary duties in the Caribbean, the Gulf of Mexico, Key West, West Africa, the Falkland Islands, and Sumatra. Commandant Henderson is credited with thwarting President Jackson's attempts to combine and integrate the Marine Corps with the Army. Instead, Congress passed the Act for the Better Organization of the Marine Corps in 1834, stipulating that the Corps was part of the Department of the Navy as a sister service to the Navy. This would be the first of many times that the independent existence of the Corps was challenged.
Document 7: Kingston, Hampshire: Kingston is a residential area of the city of Portsmouth in the English county of Hampshire, located between Buckland, Fratton and North End. It was a recognised suburb of the city by the middle of the 19th century.
Document 8: Canadian Armed Forces: The responsibility for military command remained with the British Crown-in-Council, with a commander-in-chief for North America stationed at Halifax until the final withdrawal of British Army and Royal Navy units from that city in 1906. Thereafter, the Royal Canadian Navy was formed, and, with the advent of military aviation, the Royal Canadian Air Force. These forces were organised under the Department of Militia and Defence, and split into the Permanent and Non-Permanent Active Militias—frequently shortened to simply The Militia. By 1923, the department was merged into the Department of National Defence, but land forces in Canada were not referred to as the Canadian Army until November 1940.
Document 9: Chief of Army Staff (Pakistan): In 1969, the title of the army command was changed from ``Commander - in - Chief ''to`` Chief of Staff'' with President Yahya Khan acting as Commander - in - Chief and General A.H. Khan as Chief of Staff. On 20 March 1972, the post was renamed as ``Chief of Army Staff ''(COAS) with Lieutenant - General Tikka Khan elevated to four star rank to be appointed as army's first chief of army staff.
Document 10: Commander-in-Chief, Portsmouth: The post of Commander-in-Chief, Portsmouth was merged with that of Commander-in-Chief, Plymouth in 1969 to form the post of Commander-in-Chief, Naval Home Command. The posts of Second Sea Lord and Commander-in-Chief Naval Home Command were amalgamated in 1994 following the rationalisation of the British Armed Forces following the end of the Cold War. In 2012, however, all distinct Commander-in-Chief appointments were discontinued, with full operational command being vested instead in the First Sea Lord; he now flies his flag from HMS "Victory".
Document 11: Southampton: Between 1996 and 2004, the population of the city increased by 4.9 per cent—the tenth biggest increase in England. In 2005 the Government Statistics stated that Southampton was the third most densely populated city in the country after London and Portsmouth respectively. Hampshire County Council expects the city's population to grow by around a further two per cent between 2006 and 2013, adding around another 4,200 to the total number of residents. The highest increases are expected among the elderly.
Document 12: Portsmouth, Virginia: Portsmouth is an independent city in the Commonwealth of Virginia. As of the 2010 census, the population was 95,535. It is part of the Hampton Roads metropolitan area.
Document 13: Drayton, Hampshire: Drayton is a residential area of the city of Portsmouth in the English county of Hampshire. Together with Farlington, its parent area, it makes up one of the electoral wards of the city.
Document 14: Portsmouth Water: Portsmouth Water is the utility company responsible for water supply and distribution in the City of Portsmouth, part of East Hampshire and part of West Sussex. Places served include Gosport, Fareham, Portsmouth, Havant, Chichester and Bognor Regis. The company is a private limited company with company number 2536455.
Document 15: Southampton: Southampton (i/saʊθˈæmptən, -hæmptən/) is the largest city in the ceremonial county of Hampshire on the south coast of England, and is situated 75 miles (121 km) south-west of London and 19 miles (31 km) north-west of Portsmouth. Southampton is a major port and the closest city to the New Forest. It lies at the northernmost point of Southampton Water at the confluence of the River Test and River Itchen, with the River Hamble joining to the south of the urban area. The city, which is a unitary authority, has an estimated population of 253,651. The city's name is sometimes abbreviated in writing to "So'ton" or "Soton", and a resident of Southampton is called a Sotonian.
ground_truth: 1969
sub_queries: Drayton, Hampshire >> located in the administrative territorial entity Answer: Portsmouth
When was Commander-in-Chief, Portsmouth abolished? Answer: 1969