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The municipal governing body of the City of London. Officially the 'Mayor and Commonalty and Citizens of the City of London'. In 2006 the name was changed from just 'Corporation of London' to distinguish it from the Greater London Authority.

In addressing the 'square mile' concept Londonist has provided a potted history of the City of London.

Worth noting that there are at least two plaques erected by the Corporation outside the City of London, both for William Blake: South Molton Street and SE1. Conversely Londonist points out that there is only one official blue plaque in the City, and it's not blue.

2021: Art Review published a major article entitled "London’s ‘Square Mile’ Is One Big Monument To Slavery". This summarises the status of the City's own Findings and Recommendations of the Tackling Racism Taskforce, and provides a list: "Some of the problematic memorials in the City of London and the individuals and organisations they celebrate not yet addressed by the City’s Taskforce On Racism."

Wikipedia has a very useful map showing "Estate (freehold) ownership of land in Central London as of 2023". The City of London estate is shown in red.