The Complete Peerage (full title: The Complete Peerage of England, Scotland, Ireland, Great Britain, and the United Kingdom Extant, Extinct, or Dormant; first edition by George Edward Cokayne, Clarenceux King of Arms; 2nd edition revised by the Hon. Vicary Gibbs et al.) is a comprehensive and magisterial work on the titled aristocracy of the United Kingdom of Great Britain and Ireland and, later, the United Kingdom and Irish Free State/Eire etc.