Regency Reader Questions: Addressing a Knight

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Thanks for the question, MF, and for being a Regency Reader! And also thank you for the salutation, I am doing very well indeed.  I hope you are, as well.

You did not say whether he was a baronet or a knight, so I have provided info on both below.

In speech, the correct formal address is ‘Sir John.’  (How to address Knights and Dames | The English Manner). The same is true for Barons and Baronets.

Guidebooks really became incredibly popular in the late Victorian era, and we have a lot of resources on address.  I have snipped some examples below. These focus on address in writing and signatures, as examples of the types of guides available in the latter half of the 19th century.  In the 1855 text (middle one) it shows formal, informal writing as well as some indications of speech.

ADDRESSES AND SIGNATURES Too much care cannot be taken to have the addresses correct and signatures legible These are cardinal points in letter writing and are too often overlooked If addresses are not correct it implies ignorance or carelessness and will often defeat the object of the letter lent Majesty The Queen Commence Madam refer to Her as Your Majesty and address The Queen's Most Excel Prince Commence Sir refer to as Your Royal Highness and address His Royal Highness the Prince of or if a Duke as His Royal Royal Highness the Duke of Princess Commence Madam refer to as Your Royal Highness and address Her Royal Highness the Princess of or if a Duchess as Her Royal Highness the Duchess of Duke Commence My Lord Duke refer to as Your Grace and address His Grace the Duke of Duchess Commence Madam refer to as Your Grace and address Her Grace the Duchess of Marquis Commence My Lord Marquis refer to as Your Lordship and address The Most Hon the Marquis of Marchioness of Marchioness Commence Madam refer to as Your Ladyship and address The Most Hon the Earl Commence My Lord refer to as Your Lordship and address The Rt Hon the Earl of Countess Commence Madam refer to as Your Ladyship and address The Rt Hon the Countess of Viscount Commence My Lord refer to as Your Lordship and address The Rt Hon Viscount Viscountess Commence Madam refer to as Your Ladyship and address The Rt Hon Vis countess Baron Commence My Lord refer to as Your Lordship and address The Rt Hon Lord Baroness Commence Madam refer to as Your Ladyship and address The Rt Hon Lady Baronet Commence and refer to as Sir address Sir Bart Baronet's wife Commence Madam refer to as Your Ladyship and address Lady
documents Sons of Peers The Eldest sons of Dukes Marquises and Earls bear a title by courtesy generally the second title of their father The Younger sons of Dukes and Marquises are also styled Lords and ad dressed as such with the addition of their Christian name as The Right Hon Lord Philip The Younger sons of Earls and all the sons of Viscounts and Barons are styled Honourable Knight Commence refer to and address as Sir the title of Knight being only added in formal Knight's wife Same as the wife of a Baronet Wives of the Sons of Peers The wives of noblemen who possess their titles by courtesy are ad dressed in the same manner as those who possess them by creation The wives of a Duke's and Mar quise's younger sons are styled Lady and unless of a superior rank to the husband are distinguished by his Christian name The wives of such as are styled Honourable take the same title and are addressed as The Hon Mrs Daughters of Peers All daughters of Dukes Marquises and Earls are styled Lady and are ad dressed as such adding their Christian name as The Right Hon Lady Annie Should they marry a person of inferior rank they still retain their title changing only their surname The daughters of Viscounts and Barons are styled Honourable When they marry they take the name of the husband but retain the title of Honourable thus if they married Knights or Baronets they would be addressed To the Hon Lady and if they married Commoners The Hon Mrs Privy Councillor Commence and refer to as Sir and address The Rt Hon Sir J H Bart MP Neither the wife nor children of a Privy Councillor are entitled to any rank or title Archbishop Commence My Lord Archbishop refer to as Your Grace and address His Grace the Archbishop of Bishop of Bishop Commence My Lord Bishop refer to as Your Lordship and address The Rt Rev the Lord Dean Commence Very Rev Sir refer to as Sir and address The Very Rev the Dean of Archdeacon Commence Venerable Sir refer to as Sir and address The Venerable the Archdeacon Canon Commence Rev Sir refer to as Sir and address The Rev Canon of Clerk in Holy Orders Same as above adding Christian name if known if not substitute a dash as The Rev Jones never use The Rev Mr Jones If a bishop or other clergyman possess any other title of rank it is prefixed to his clerical title No clerical dignity confers any title or rank upon wives or children of those who bear them thus the wife of an archbishop or bishop would be addressed as Mrs unless she bore any title of her own or of her husband Lord Chancellor Commence My Lord refer to as Your Lordship and address The Rt Hon the Lord High Chancellor Rt Hon the Chief Justice of England Lord Chief Justice of England Commence My Lord refer to as Your Lordship and address The Lord Chief Baron of the Exchequer Commence My Lord refer to as Your Lordship and address The Rt Hon the Lord Chief Baron of the Court of Exchequer Judge Commence and refer to as Sir and address The Hon Mr Justice Judges are usually knights and their wives are addressed as the wives of knights Sergeant Commence and refer to as Sir and address Mr Sergeant Mayor of Lord Mayor Commence My Lord refer to as Your Lordship and address The Rt Hon the Lord Lady Mayoress Commence Madam refer to as Your Ladyship and address The Rt Hon the Lady Aldermen are usually addressed by their title as Mr Alderman Mayoress Masters of the Livery Companies of the City as The Worshipful Master of the Company Foreign Ambassadors In addressing those resident in this country it is usual to affix Excel lency to their other titles as His Excellency the Hon W S Ambassador Extraordinary from HM the King of The wives of Ambassadors are also styled Excellency Foreign Consuls are addressed according to their title adding Consul General for British Ambassadors and Governors of Colonies have Excellency prefixed to their other titles and their wives are also thus addressed The busy man’s hand-book. (1891). United Kingdom: Griffith, Farran, Okeden & Welsh..
Modes of Addressing Persons of Title To insure correctness in addressing the nobility or other personages of rank it necessary to ascertain if the person to be addressed has any hereditary or distinction by which the mode of addressing must be regulated THE SOVEREIGN In writing to the Sovereign it is proper to address letters and documents To the Queen's Most Excellent Majesty and to them with Madam When personally addressed Your Majesty The Prince of Wales His Royal Highness the Prince of Wales commence Sir When personally addressed Your Royal Highness The Princess of Wales is addressed in the same manner the word Princess being used instead of Prince and Madam in place of Sir Princes or Royal Dukes His Royal Highness Prince or His Highness the Duke of Letters commence Sir When addressed Your Royal Highness Princesses or Royal Duchesses Her Royal Highness the Princess Her Royal Highness the Duchess of Letters commence Madam the style is Your Royal Highness Lord Lieutenant of Ireland His Excellency the Lord Lieutenant if Duke His Grace the Lord Lieutenant Letters commence according to hereditary rank Archbishops Documents are addressed To the Most Reverend Father God by Divine Providence Lord Archbishop of Letters To His the Lord Archbishop of commencing with My Lord Archbishop Archbishop of Canterbury only is styled By Divine Providence the other Arch bishops and the suffragan Bishops are styled By Divine Permission Archbishop of Armagh is usually addressed His Grace the Lord Primate Ireland In conversation an Archbishop is addressed Your Grace wives of Archbishops and Bishops have no title in right of their husband's appointments Dukes His Grace the Duke of Letters commence My Duke When personally addressed he is styled Your Grace Duchess Her Grace the Duchess of commencing with Madam Duke's Eldest Son is addressed by courtesy by the second title of his father in all respects as if his title were that of a Peer Duke's Younger Son The Lord John or on more formal occasions The Right Honourable Lord John Letters commence My Lord When personally addressed Your Lordship The wife of a Duke's youngest son is addressed The Lady John and commences Madam When personally addressed Your Ladyship Duke's Daughters The Right Honourable Lady Mary or less formally The Lady Mary commencing with Madam When personally addressed Your Ladyship Marquis The Most Honourable the Marquis of Letters com mence My Lord Marquis When personally addressed My Lord or Your Lordship Marchioness The Most Honourable the Marchioness of commencing with Madam and styled Your Ladyship Marquis's Eldest Son As Duke's Marquis's Younger Sons As Duke's Marquis's Daughter As Duke's Earl Letters are addressed The Right Honourable the Earl of or The Earl of commencing with My Lord and styled Your Lordship Countess The Right Honourable the Countess of commencing with Madam and styled Your Ladyship Earl's Eldest Son As if he held by right the title he bears by courtesy Earl's Younger Sons As Baron's sons Earl's Daughter As Duke's daughter Viscount Letters are addressed To the Right Honourable Lord Viscount or The Lord Viscount commencing with My Lord and styled Your Lordship Viscountess The Right Honourable the Viscountess of commencing with Madam and styled Your Ladyship Viscount's Son See Baron's son Viscount's Daughter See Baron's daughter Bishops Documents are addressed The Right Reverend Father in God William by Divine Permission Lord Bishop of Letters To the Right Rev the Lord Bishop of commencing with My Lord Bishops of Scotland and of America are addressed by their own name and not by that of their diocese and letters to them commence Right Reverend Sir Baron Addressed in writing To the Right Honourable Lord com mencing with My Lord and styled Your Lordship Baroness The Right Honourable Lady or The Lady com mencing with Madam and styled Your Ladyship Baron's Son The Honourable Robert & c In writing commence with Sir Baron's Daughter The Honourable Miss or The Honourable Mrs In writing commence with Madam Baronet Address Sir John Bart commencing with Sir or Sir John Baronet's Wives Addressed as Lady If the daughter of an Earl Marquis or a Duke add the Christian name of the lady Maids of Honour The Honourable Miss commencing Madam Knight Bachelor Sir John or Sir Thomas addition of Knight Letters commence Sir without the Knight Bachelor's Wife is addressed by letter Lady commencing Madam When personally referred to she is styled Your Ladyship
Knights of the Garter St Patrick The Thistle The Bath St Michael and St George have the letters KG KP KT GCB or KCB GCMG or KCMG respectively added after the surname Privy Councillor Right Honourable whatever be the rank The Wives of Privy Councillors enjoy no title in right of their husbands appointment to the Board of Privy Council Members of Parliament The letters MP should be added to the surname Military and Naval Officers The professional rank should be always prefixed to any other title the individual may hold as Major General Sir John К С В & c & c Lord Mayor The Right Honourable the Lord Mayor commencing My Lord In the United Kingdom there are three Lord Mayors being those of London York and Dublin The Illustrated Queen Almanac and Lady’s Calendar. (1855). United Kingdom: Published at the Queen Office..

There is also always Debretts, which has a section on addressing persons of title:

FORMAL MODES OF ADDRESSING PERSONS OF TITLE CORRECTNESS in addressing a person of title or one holding high office can only be attained by first discovering what is his or her precise social rank or his official position As the name of every individual referred to in the two classes indicated appears in Debrett's Peerage Baronetage Knightage and Companionage there will be no difficulty in obtaining the requisite information It must always be remembered that clerical naval and military prefixes are written before other titles that initials indicative of distinction are written after the title or name and that a High Officer of State or an official holding an important office should be addressed by his official title when the communication refers to official business A Widow who re marries loses any title or precedence she gained by her previous mar riage Society however from pure motives of courtesy sanctions the retention of former rank and with one exception permits ladies who have re married to be addressed as though their titled husbands were living The exception is that of the widow of an Honourable who is not permitted even by courtesy to retain after re marriage the prefix gained through her first husband But officially a widow who remarries is not recognised as having any claim to bear the title of her deceased husband eg at a coronation or other State ceremonial the widow of a peer would not be summoned as a peeress if she had subse quently married a commoner and if having espoused a peer of lesser degree than her former husband she would only be recognised by the rank acquired by her last marriage Ambassador British LETTERS Superscription To His Excellency in other respects according to his rank HBM s Ambassador Extraordinary and Plenipoten tiary Commencement My Lord or Sir according to rank Conclusion I have the honour to be My Lord or Sir Your Excellency's most humble and obedient servant PERSONAL ADDRESS Your Excellency NOTE a Minister is not ad dressed as Excellency Ambassador's Wife When resident abroad at the Court to which her husband is accredited she is sometimes out of courtesy styled Her Excellency but she is not entitled to be so designated and when in England the title is never used Archbishop LETTERS Superscrip tion His Grace the Lord Archbishop of Commencement My Lord Arch bishop Conclusion I have the honour to be my Lord Archbishop Your Grace's most devoted and obedient servant PER SONAL ADDRESS Your Grace In FORMAL DOCUMENTS the Archbishop of Canterbury is addressed as The Most Reverend Father in God Archi bald Frederick by Divine Providence Lord Archbishop of Canterbury the Archbishop of York as The Most Reverend Father in God William by Divine Permission Lord Archbishop of York Archbishop's Wife As the Wife of an Esquire Archdeacon LETTERS Superscrip tion The Venerable John or The Venerable the Archdeacon of Commencement Venerable Sir Con clusion I have the honour to be Venerable Sir Your very obedient servant PERSONAL ADDRESS Sir Baron LETTERS Superscription The Right Hon Lord Commence ment My Lord Conclusion I have the honour to be my Lord Your Lord ship's obedient and humble servant PER SONAL ADDRESS My Lord or Your Lordship Baroness LETTERS Superscription To the Right Hon the Baroness or Right Hon the Lady Com mencement Madam Conclusion I have the honour to be Madam your Ladyship's obedient and humble servant PERSONAL ADDRESS My Lady or Your Ladyship See also Baron's Widow If a Baroness in her own right marry a commoner and have issue the children have the same rank and are addressed as if their father were a Baron Baronet LETTERS Superscription Sir Charles Baronet Commence ment Sir Conclusion I have the honour to be Sir Your humble and obedient servant PERSONAL ADDRESS Sir The word Baronet should appear in full on cards taken to HM s Levees and official signatures but the abbreviation Bt is customarily used in most other cases being preferred to that of Bart at one time more usually in vogue Baronet's Widow Same as Baronet's Wife if present baronet is unmarried but it he be married then the widow being the mother or grandmother of the baronet is styled if the daughter of a commoner The Dowager Lady but when such re lationship does not exist the widow must be addressed as Helen Lady the Christian name being inserted before Lady See Dowager As to re marriage see Widows Debrett’s illustrated baronetage and knightage (and companionage) of the United Kingdom of Great Britain and Ireland. (1903). United Kingdom: (n.p.).

I snipped an early 20th century version, but earlier 19th century Debrett’s has this section too (you can click on it to go to the Google book and read the whole section or book).

Thanks for the question, I think it’s an important one and a good reminder to refresh ourselves on address when writing.

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2 Responses to Regency Reader Questions: Addressing a Knight

  1. Anonymous says:
    October 19, 2026 at 10:22 am

    These forms of address all concern writing, not speaking. For instance, a baron’s daughter might be announced at a ball as “The Honorable” but would be spoken to and about as “Miss” if unmarried

    • Anne says:
      October 19, 2026 at 12:38 pm

      I am sorry it was not more clear, I will amend the post. The snipped examples from source material do address writing. I thought it important for readers to understand the resources available to them to answer other questions.

      The main text where I reference the English Manner website is specifically for speech, as indicated in the text. This website also includes direction on formal and social writing.