The fifth degree of the Peerage, baron is always referred to, both verbally and in correspondence, as Lord (Hays) rather than Baron (Hays). The title baron is never used, except in formal or legal documents.
In the peerage of Scotland, the fifth grade of the peerage is a Lord (Lord of Parliament) in any case.
Ecclesiastical, ambassadorial and armed forces ranks precede a baron’s rank in correspondence. For example,
Major-General the Lord……..’.
The wife of a baron is known as Lady (Hays).
A number of baronies can be inherited in the female line and there are a large number of female life baronesses.