The Town Clerk of London has held responsibility for recording the minutes of the council of the
London and its committees since 1274.
 But historically, the Town Clerk of London's elected position was also one of a legal advisor and recorder of city law. The Town Clerk has worked out of the
Guildhall, London building since 1411. Today the Guildhall is still used for official functions..
The elected City of London council assumed legislative functions and adopted financial powers as confirmed by charters of 1377 and 1383 and as written by the Town Clerk of London. The council, with the Town Clerk, has amended the civic constitution, regulated the election of Lord Mayor and other officials, and amended the functions of the
City of London courts via
This was successful, leading to the similar expansion of the City of London courts who had jurisdiction outside London as a type of
county court. This gradually took over from the now obsolete circuit criminal court called the
Assize Court. The format strongly influenced the development of the High
Court of Chancery and
Lord Chancellor's jurisdiction based in
Great Fire of London
destroyed 80% of the city in 1666. The Guildhall was damaged in this and other great fires.
During the early 17th century, before and after the 1666
Great Fire of London the Town Clerk's function began to evolve into more complex and multiple positions as need and growth dictated. The more modern era of the Town Clerk as an executive had begun requiring more assistants and employees.
Lord Mayor of the City of London is assisted in the daily operation of the city by three leading personnel
 whose titles are the Town Clerk and Chief Executive, the
Chamberlain and the