The Sons of Dukes and Marquises, and the eldest Sons of Earls, have, by courtesy, the titles of Lord and Right Honourable; and all the Daughters have those of a Lady and Right Honourable.
The younger Sons of Earls, and the Sons and Daughters of Viscounts and Barons, are styled Honourable.
OFFICIAL MEMBERS OF THE STATE.
A Member of Her Majesty's Most Hon. Privy Council—
1. Sir, or My Lord, Right Honourable Sir, or My Lord, as the case may require.
2. To the Right Honourable ——,[1] Her Majesty's Principal Secretary of State for Foreign Affairs.
[1] Here write the name, and specify the title or rank of the person addressed, as "The Right Honourable the Earl of Winchelsea."
AMBASSADORS AND GOVERNORS UNDER HER MAJESTY.
1. Sir, or My Lord, as the case may be; May it please your Excellency.