Natural-born subjects were born within the dominion of the crown.

Natural-born subjects owe allegiance wherever they may be.

Alien-born women became naturalized by marriage to a natural-born subject or to a husband naturalized under the Act.

"A denizen is a kind of middle state, between an alien and a natural-born subject, and partakes of both."

Parliament later deposed Hamilton because "no other than a natural-born subject of England could serve in any public post of trust or profit" (Hamilton was Scottish).

These restrictions were introduced by the British Nationality Act 1981, but were previously far more stringent: under the Act of Settlement 1701, only natural-born subjects were qualified.

This colonial naturalisation declared Prosper to be a "Natural-born Subject of Great Britain, and to be entitled to all the Rights, Privileges, and Advantages, which are conferred on Foreign Protestants".

After William's death, if either of them married a Catholic, married a person other than a natural-born subject without the consent of both Houses of Parliament, or left the United Kingdom, then their regency was to end.

Basse was not an effective governor, however, after Andrew Hamilton returned to England in 1698, following an act of parliament which provided that "no other than a natural-born subject of England could serve in any public post of trust or profit."

Moreover, in Calvin's Case, Lord Coke cited examples in which the native-born children of parents, either invading the country or who were enemies of the country, were not natural-born subjects because the birth lacked allegiance and obedience to the sovereign.

The protest expressed the sense which the House entertained of the danger and disgrace of the treaties, which acknowledged to all Europe that Great Britain was unable, either from want of men, or disinclination to this service, to furnish a competent number of natural-born subjects to make the first campaign.

Also in 1608, Fleming was one of the judges at the trial of the post nati in 1608, siding with the majority of the judges in declaring that persons born in Scotland after the accession of James I were entitled to the privileges of natural-born subjects in England.