City's Cash

From the longer Wikipedia page

City's Cash is an account set up and run by the Corporation of the City of London in which it keeps the accumulated funds of donations going back to the fifteenth century. It is a sovereign wealth fund. It is one of three funds run by the City of London, the other two being the City Fund and the City Bridge Trust.

The City of London's right to acquire any "wastes and open spaces" gave rise to the City's Cash estate. Its core holding is a 35-acre (14-hectare) estate within the "Square Mile", including the Old Bailey, sections of New Broad Street, Whitefriars and Fenchurch Street, plus the markets of Smithfield and Leadenhall. Billingsgate market, although now outside the City, also forms part of the Cash estate.