This is a list of courtesy titles used for the heirs of currently extant titles in the Peerages of England, Scotland, Great Britain, Ireland, and the United Kingdom. Asterisks denote courtesy titles currently used by living heirs. Courtesy titles for heirs of dukes Courtesy titles for heirs of marquesses Courtesy titles for heirs of earls See also List of dukes in the peerages of Britain and Ireland List of marquesses in the peerages of Britain and Ireland List of earls Notes See also Peerages in the United Kingdom External links Debrett's, Peerages by Courtesy List of courtesy titles in the peerages of Britain and Ireland Titles in the United Kingdom Peerages in the United Kingdom