ナンシーはいわゆる貴族階級の出である。の英語

Nancy comes from what we call the aristocracy.

He is a fag-end of nobility.

a woman of the peerage in Britain

He springs from a noble family.

a noblewoman ranking below a duchess and above a countess

Middleton is not from an aristocratic background.

He was created a peer.

the privileged classes called the aristocracy

He was raised to the peerage―created a peer―ennobled.

When it comes to aristocrats, even the way of speaking is different.

they behaved aristocratically

a British peer who ranks below an earl and above a baron

He is of noble blood.

a title used to address any peeress except a duchess

a British peer of the lowest rank

the aristocracy

a mansion that is (or formerly was) occupied by an aristocratic family

The aristocrat clings to the glory of his past.

a person belonging to the social class called the new poor

a light loose long-sleeved shirt, gown, or tunic sometimes worn as an undergarment, called camise

a British peer ranking below a duke and above an earl

a peer who is entitled to sit in the House of Lords

a British peer whose title lapses at death

a political system called aristocracy

His dress somehow gives an aristocratic impression.

His dress and bearing somehow give an aristocratic feel.

be raised to the peerage

the dignity or rank or position of an earl or countess

the social status of aristocrat

the titled classes