Within Greater London there are two cities, the City of London and the City of Westminster.
The City of Westminster is a central borough in London, England, on the north bank of the River Thames adjacent to the City of London, and is one of the 33 local government districts that make up Greater London.
It has been a city since 1540 and within its boundaries are Buckingham Palace, the Houses of Parliament, 10 Downing Street, and Westminster Abbey.
To people not familiar with London it may seem strange that there are cities within the London that stretches thirty six miles from east to west that is officially known as Greater London.
And the best way to explain how it came about is the often used description that London is a collection of villages – or small cities in the case of the City of Westminster and the City of London.
Both the City of Westminster and the city of London are subject to UK parliamentary legislation and national governance. So it is not like they are a law unto themselves at the national level.
And the City of Westminster is governed by Westminster City Council, which is a local authority responsible for providing services and making decisions within its jurisdiction. So Westminster is a typical modern area.
The City of London is very different.
The City of London Corporation governs the City of London. The Corporation was established in medieval times, but there is no record of a charter that incorporated it. Instead, the corporation is considered incorporated by prescription, meaning that the law assumes it was incorporated because it has been considered as such for so long. It is a neat solution.
The leader is the Lord Mayor of London, which is a distinct and separate office from the Mayor of London who is the leader of the Greater London Authority.
The police authority is the City of London Police, founded in 1839, one of the oldest police forces in the UK. It is separate from the Metropolitan Police Service and has jurisdiction in the Square Mile as the historic financial district of London is known.
Beyond its general role as a police force, it focuses on fraud, cybercrime, and money laundering, and is headquartered in Guildhall Yard East located within the City of London.