What is the most common city name?

Each ward may choose a number of common councilmen. A Common Councilman must be a registered voter in a City ward, own a freehold or lease land in the City, or reside in the City for the year prior to the election. They must also be over 21, a Freeman of the City, and a British, Irish, Commonwealth or EU citizen. Common Council elections are held every four years, the next in March 2009. Common Councilmen may use the initials CC after their names.