Derby Corporation Act, 1877
WHEREAS the borough of Derby, in the county of Derby, is an ancient municipal borough, and was reconstituted such by a charter dated at Westminster the fifth day of September in the thirty-fourth year of the reign of His late Majesty King Charles the Second, and the borough is now under the government of the mayor, aldermen, and burgesses thereof, subject and according to the Acts relating to municipal corporations, the number of the aldermen being twelve and that of the councillors thirty-si...