 In the meantime, the administration of London was reformed under the London Government Act 1963.While the City of London was permitted to continue in existence largely unchanged, Westminster was merged with two neighbouring authorities to form a new London borough from 1 April 1965.In December 1963 it was announced that a charter was to be granted incorporating the new authority as "Westminster", and that the Queen had accepted the advice of the Home Secretary to raise the London borough to the title and dignity of city.