"But in her speech in the Guildhall to the City government she roused herself to oratorical heights"
The Guildhall, City of London
Creative Commons Attribution Share AlikeThe Guildhall, City of London - Credit: David (talk)

The Guildhall remains the ceremonial centre of the City of London.  It has been used as a town hall for several hundreds of years and is the only building not owned by the Church to survive the Great Fire of London in 1666. 

 

The complex of buildings have housed many different functions including the trials of Lady Jane Grey and Thomas Cranmer.  It was the place of meeting for the City Government in Tudor times, and where monarchs, such as Mary, addressed the City of London directly.