The Mayor of Kilkenny is an honorific title used by the head of Kilkenny Borough Council. The Council has jurisdiction throughout its administrative area which is the city of Kilkenny in the Republic of Ireland. The office was established in the 16th century and had significant powers. The office was all but abolished under the Local Government Act 2001. All that remains of the office, per section 11 of the Act is a symbolic role: "Subject to this Act, royal charters and letters patent relating to local authorities shall continue to apply for ceremonial and related purposes in accordance with local civic tradition but shall otherwise cease to have effect.". The Act goes on to state the chairman of the Council must be styled the Cathaoirleach and that "Any reference in any other enactment to the lord mayor, mayor, chairman, deputy lord mayor, deputy mayor or vice-chairman or cognate words shall, where the context so requires, be read as a reference to the Cathaoirleach or Leas-Chathaoirleach or other title standing for the time being." (section 31 (3)).