https://www.cityoflondon.gov.uk/about-us/law-historic-governance/freedom-of-the-city https://www.cityoflondon.gov.uk/about-us/law-historic-govern... might be he

https://www.cityoflondon.gov.uk/about-us/law-historic-governance/freedom-of-the-city https://www.cityoflondon.gov.uk/about-us/law-historic-govern... might be helpful?