Noun
municipium (plural municipia)
(historical) An ancient Roman town or city.
Around 49 (or 45 or 43) BC, Padua was made a Roman municipium under the Lex Julia Municipalis and its citizens ascribed to the Roman tribe, Fabia. Source: Internet
The settlement was granted the rank of municipium around AD 50, meaning that its citizens had what were known as "Latin Rights", a lesser citizenship status than a colonia possessed. Source: Internet