What is the Daughter of a duke?

Answer 1

The basic rules in the UK, which if you're asking in English is probably the system you're most concerned about, are:

There's no special title for the son of any peer other than within the Royal house itself, where the titles Prince and Princess are used for the children and grandchildren of the sovereign.

However, a duke, who is a member of the highest non-royal rank of the peerage, is fairly likely to also hold several lesser titles, and it's customary to refer to his eldest son by the next-higher title that properly speaking actually belongs to the Duke himself. Therefore, if a man is both Duke of This and Earl of That, he'll usually just be called Duke This and his eldest son will be called Earl That. This is a courtesy title only; the son is still legally regarded as a commoner (though one belonging to a noble family) unless the title specifically conferred upon him by a writ of acceleration.

The general safe title for the son of a duke if you don't know his specific title is "Lord". Again, this is merely a courtesy title, but since you bothered to ask we're assuming you're making a special effort to be polite.

Answer 2

Usually, she's The Lady Firstname Surname. If she's the heir-presumptive to her father's dukedom, and if the dukedom is Scottish, she might be The Mistress of

Answer 3

Marquess. If he is the eldest.

Answer 4

Marquess.

Answer 5

Zoe