The Noble House of Brattleby presents
British Forms of Address
How to address the ranks of the British peerage in conversation, in correspondence and on an envelope — with the sources to check anything you are unsure of.
Under the patronage of Lady Nicoleta Vasile, The 12th Baroness of Brattleby, Mihai-Alexandru Crăciun, The 13th Baron of Brattleby and Honorary Lord Răzvan Vasile (by marriage)
Fortitudine et Honore
The peerage of the United Kingdom has five degrees: duke, marquess, earl, viscount and baron. Each has its own spoken form, its own salutation in a letter and its own form on an envelope, and the three are rarely the same. A baron, for example, is addressed as Lord in speech and on an envelope; a duke uses different forms according to the setting.
The six guides below cover the questions people actually search for and most often get wrong. They set out what each title means, how to speak to the holder, how to open and close a letter, what to write on an envelope or invitation, how spouses and children are styled, and where courtesy styles differ from substantive titles.
These pages are Brattleby editorial guidance. They are not an official publication of, and are not endorsed or affiliated with, Debrett's, Burke's, the College of Arms, Parliament, the Royal Household or any government body. Each guide cites public sources so that any form can be verified independently.
These guides deal with etiquette — how to speak and write to a title holder. If you are instead asking what each rank is, where it sits in the hierarchy and what it means constitutionally today, see our companion reference on British nobility ranks and titles. The feudal barony from which this House takes its name is described alongside the Lincolnshire village of Brattleby, which is a separate entity from the House itself. For a wider view of how the House approaches etiquette and protocol education, explore the Brattleby Academy overview. To practise these conventions in realistic situations — introductions, seating, correspondence — try the interactive Etiquette Oracle.
The six essential guides
- How to Address a BaronWhy a baron is addressed as Lord, and what changes on the envelope.Read the guide
- How to Address a BaronessThe difference between a peeress in her own right and a baron's wife.Read the guide
- How to Address a LordLord is a style, not a rank — how to tell which kind you are writing to.Read the guide
- How to Address a ViscountSpoken, written and envelope forms for a viscount and viscountess.Read the guide
- How to Address an EarlThe Earl of form, the countess, and courtesy titles for the children.Read the guide
- How to Address a DukeYour Grace in practice, and how royal dukes differ from all the rest.Read the guide
Conventions vary by setting, and many people hold a personal preference that differs from the textbook form. For high-stakes official, parliamentary or diplomatic correspondence, confirm the recipient's current preferred style with their office before you write.
Frequently asked questions
- What are the five ranks of the British peerage?
- In descending order: duke, marquess, earl, viscount and baron. Each is addressed differently in speech, in letters and on envelopes.
- Is "Lord" a rank?
- No. Lord is a style used by barons, viscounts, earls and marquesses, and also by younger sons of dukes and marquesses who hold a courtesy style rather than a peerage.
- How do I address a baroness in writing?
- Open Dear Lady [Title]. The envelope reads The Baroness [Title] for a peeress in her own right, or The Lady [Title] for the wife of a baron.
- When should I use "Your Grace"?
- For a non-royal duke or duchess on a formal first address, after which Duke or Duchess is used. A royal duke is addressed as Your Royal Highness, then Sir.
- Where do these conventions come from?
- They are long-standing usage described in public guidance from UK Parliament, the Royal Family's own website and established etiquette references. Each guide links to those sources so you can verify them.
Complete index of ranks and offices
Need guidance for a specific occasion?
Seating a mixed delegation, drafting an invitation list or writing to an office rather than a person raises questions no general guide can settle. The Protocol Office of the House answers written enquiries, and the Education programme covers protocol in more depth.
From the Press & Communications Office
Nicoleta Vasile
Lady Nicoleta Vasile
12th Baroness of Brattleby
Patroness
Răzvan Vasile
Honorary Lord Răzvan Vasile (by marriage)
Lord of Brattleby
Patron & Custodian
Mihai A. Crăciun
Baron Mihai Alexandru Crăciun
13th Baron of Brattleby
Head of House
Issued by
The Protocol Office of the House of Brattleby
The Noble House of Brattleby · London · United Kingdom
Dated this 26 September 2026.
The House of Brattleby is a private cultural and heritage initiative. This page is editorial in nature and is not an official governmental, royal, or ecclesiastical document.
Fortitudine et Honore