Title: London
Content:  London is the capital and largest city of England and the United Kingdom. It stands on the River Thames in south-east England at the head of a 50 mi estuary down to the North Sea, and has been a major settlement for two millennia. The City of London, its ancient core and financial centre, was founded by the Romans as Londinium and retains boundaries close to its medieval ones. Since the 19th century, "London" has also referred to the metropolis around this core, historically split between the counties of Middlesex, Essex, Surrey, Kent, and Hertfordshire, which largely makes up Greater London, the region governed by the Greater London Authority. The 
Title: City of London
Content:  25 wards, with administration at the historic Guildhall. Other historic sites include St Paul's Cathedral, Royal Exchange, Mansion House, Old Bailey, and Smithfield Market. Although not within the city, the adjacent Tower of London is part of its old defensive perimeter. Bridges under the jurisdiction of the City include London Bridge and Blackfriars Bridge. The city is a major business and financial centre, and the Bank of England is headquartered in the city. Throughout the 19th century, the city was the world's primary business centre, and it continues to be a major meeting point for businesses. London came top in the Worldwide Centres of Commerce Index, published in 2008. The insurance industry is located in the eastern side 
Title: London
Content:  Within London, both the City of London and the City of Westminster have city status and both the City of London and the remainder of Greater London are counties for the purposes of lieutenancies. The area of Greater London includes areas that are part of the historic counties of Middlesex, Kent, Surrey, Essex and Hertfordshire. London's status as the capital of England, and later the United Kingdom, has never been granted or confirmed officially—by statute or in written form. Its position was formed through constitutional convention, making its status as de facto capital a part of the UK's uncodified constitution. The capital of England was moved to London from Winchester as the Palace of Westminster developed in the 12th and 13th centuries to become the permanent location of the royal court, and thus the political capital of the nation. More recently, Greater London has been defined as a region of England and in this context is known as London.
Title: History of London
Content:  The history of London, the capital city of England and the United Kingdom, extends over 2000 years. In that time, it has become one of the world's most significant financial and cultural capital cities. It has withstood plague, devastating fire, civil war, aerial bombardment, terrorist attacks, and riots. The City of London is the historic core of the Greater London metropolis, and is today its primary financial district, though it represents only a small part of the wider metropolis.
Title: City of London
Content:  The City of London is a city, ceremonial county and local government district that contains the historic centre and the primary central business district (CBD) of London. It constituted most of London from its settlement by the Romans in the 1st century AD to the Middle Ages, but the modern city named London has since grown far beyond the City of London boundary. The city is now only a tiny part of the metropolis of London, though it remains a notable part of central London. Administratively, it forms one of the 33 local authority districts of London; however, the City of London is not a London borough, a status reserved for the other 32 districts (including London's only other 
Title: City of London
Content:  The City of London vies with New York City's Downtown Manhattan as the financial capital of the world. Whilst New York is the most significant stock-trading centre, London's foreign exchange market is the biggest in the world, by the amount traded. The London Stock Exchange (shares and bonds), Lloyd's of London (insurance) and the Bank of England are all based in the city. Over 500 banks have offices in the city. The Alternative Investment Market, a market for trades in equities of smaller firms, is a recent development. In 2009, the City of London accounted for 2.4% of UK GDP. London is the world's greatest foreign exchange market, with much of the trade conducted in the City of London. London's foreign exchange market has been described by Reuters 
Title: City of London Corporation
Content:  The City of London Corporation, officially and legally the Mayor and Commonalty and Citizens of the City of London, is the municipal governing body of the City of London, the historic centre of London and the location of much of the United Kingdom's financial sector. In 2006, the name was changed from Corporation of London as the corporate body needed to be distinguished from the geographical area thus avoiding confusion with the wider London local government, the Greater London Authority. Both businesses and residents of the City, or "Square Mile", are entitled to vote in City elections, and in addition to its functions as the local authority—analogous to those undertaken by the 32 boroughs that administer the rest of the Greater London region—it takes responsibility for supporting the financial services industry and representing its interests. The corporation's structure includes the Lord Mayor, the Court of Aldermen, the Court of Common Council, and the Freemen and Livery of the City. The "Liberties and Customs" of the City of London are guaranteed in Magna Carta’s clause 9, which remains in statute.
Title: Outline of London
Content:  The following outline is provided as an overview of and topical guide to London: London – capital and most populous city of England, Great Britain, and the United Kingdom. On the River Thames in the south east of the island of Great Britain, London has been a major settlement for two millennia. It was founded by the Romans, who named it Londinium. London is a cultural capital and leading global city in the arts, commerce, education, entertainment, fashion, finance, healthcare, media, professional services, research and development, tourism, and transport. It is the world's financial capital and has the fifth-or sixth-largest metropolitan area GDP in the world.
Title: Cities of London and Westminster (UK Parliament constituency)
Content:  The Cities of London and Westminster seat contains the two historical centres of the capital. The City of London is an international financial centre - while Westminster, home to the Houses of Parliament, Whitehall and Downing Street, represents Britain's political centre. The seat includes iconic landmarks such as Buckingham Palace and St Paul's Cathedral, the West End's Theatreland and Soho. Some of the country's wealthiest residents live in exclusive Mayfair, Belgravia and Knightsbridge. Less than half the population was born in the UK - a fifth hail from elsewhere in Europe, while one in twenty is American, according to the 2011 Census. Around half of 
Title: Caput Mundi
Content:  The capital of the British Empire, the largest empire in history, London, was often called the Novum Caput Mundi. It was part of the Roman Empire and has been a major settlement since the epoch of Ancient Rome. London still remains one of the world's leading business, financial, and cultural centres, and its influence in politics, education, technology, entertainment, media, fashion and the arts all contribute to its status as a major global city. Many of the world's largest corporations have their headquarters in London, the city taking a central role as a part of the wider global economy. In addition London in time and on maps is on the Prime Meridian, running directly through Greenwich (also known as the Greenwich Meridian), with its time zone as GMT+0 (UTC+0). The decision made at 

Question: What is City of London the capital of?
Answer: Kingdom of England.
England.