The Metropolitan Cattle Market (later Caledonian Market), just off the Caledonian Road in the parish of Islington (now the London Borough of Islington) was built by the City of London Corporation and was opened in June 1855 by Prince Albert. The market was supplementary to the meat market at Smithfield and was established to remove the difficulty of managing live cattle at that latter site. At the break-up of the GLC, Market Estate was transferred to the control of the local authority, London Borough of Islington. More information on the Wikipedia page [1].