History of Manchester
According to Oxford University Press, Manchester derived its name from Mamucium, the Roman name for the 1st century-settlement and fort. Mamucium itself is a Latinised form of the Celtic meaning "breast-shaped hill".
Manchester Parish
Manchester was formed in 1814, by an Act of the House of Assembly, making it one of the newest parishes of Jamaica. It was formed as a result of the amalgamation of portions of the parishes St. Elizabeth, Clarendon and the entirety of Vere. The amalgamation was done in response to a petition from the inhabitants of Mile Gully, May Pen and Carpenters Mountain who complained that they were too far away from an administrative centre. Manchester was named in honour of the William Montagu, 5th Duke of Manchester, the then Governor of Jamaica. He was governor for 19 years, setting the record as the longest-serving governor of the island. The capital town, Mandeville, established in 1816, was named after his eldest son, Lord Mandeville.