Nationality of Married Persons

Nationality of Married Persons concerns the effect of marriage on the nationality of spouses and the rules governing the acquisition, retention, change or loss of nationality as a consequence of marriage. Modern International Law recognises that marriage should not automatically determine a person’s nationality and increasingly emphasises equality between spouses and independent nationality.

Meaning

Historically, many legal systems treated the nationality of a married woman as dependent upon the nationality of her husband.

The traditional approach was:

Woman’s nationality → Husband’s nationality

Modern International Law has moved away from this principle.

The contemporary approach is:

Marriage → does not automatically change nationality

Each spouse generally retains their own nationality unless the person voluntarily acquires another nationality or domestic law provides for a lawful change.

Historical Position

Historically, the nationality of married women was often governed by the principle of unity of nationality within the family.

Under this approach, marriage could result in:

• automatic acquisition of the husband’s nationality;
• loss of the woman’s original nationality;
• change of nationality upon the husband’s change of nationality;
• loss of nationality upon divorce in certain legal systems.

This approach created significant problems, particularly for women who could become stateless or lose their independent nationality.

Modern International Law

Modern International Law recognises that marriage should not automatically alter the nationality of either spouse.

The important principles are:

• equality of spouses;
• independent nationality;
• freedom to retain nationality;
• protection against arbitrary loss of nationality;
• prevention of statelessness.

Convention on the Nationality of Married Women, 1957

The Convention on the Nationality of Married Women, 1957 is an important international instrument concerning this subject.

It seeks to prevent nationality from changing automatically merely because of:

• marriage;
• divorce;
• a change in the nationality of the husband.

Article 1

Article 1 establishes the principle that neither the celebration nor dissolution of marriage between nationals and aliens should automatically affect the nationality of the wife.

Thus:

Marriage ≠ Automatic loss of nationality

and

Marriage ≠ Automatic acquisition of husband’s nationality

Article 2

The Convention recognises that the voluntary acquisition of the nationality of another State by one of the spouses does not automatically prevent the other spouse from retaining their nationality.

This reinforces the principle of independent nationality.

Article 3

The Convention also deals with the voluntary acquisition of nationality by the husband and the consequences for the wife’s nationality.

The central principle remains that nationality should not automatically change merely because the nationality of the spouse changes.

Nationality Through Marriage

Although marriage does not automatically confer nationality under modern International Law, domestic laws may provide a facilitated route to naturalisation for foreign spouses.

For example:

Person A → National of State A

Marries → National of State B

↓

State B’s law → allows simplified naturalisation

↓

Person A may apply for State B nationality

The important point is that this is generally an optional legal process, rather than automatic nationality.

Retention of Nationality

A married person should generally be able to retain their nationality after marriage.

This is particularly important for preventing situations in which a person loses nationality merely because they marry a foreign national.

Nationality of the Husband

The nationality of the husband does not automatically determine the nationality of the wife under modern international standards.

Similarly, the nationality of the wife should not automatically determine the nationality of the husband.

The principle applies to both spouses.

Equality of Spouses

The modern approach is based upon equality.

Both spouses should have equal legal capacity concerning:

• acquisition of nationality;
• retention of nationality;
• change of nationality;
• loss of nationality;
• transmission of nationality to children.

Convention on the Elimination of All Forms of Discrimination Against Women

The Convention on the Elimination of All Forms of Discrimination Against Women, 1979 (CEDAW) is particularly important.

Article 9 requires States to grant women equal rights with men concerning nationality.

It also addresses the nationality of children.

Article 9 of CEDAW

Article 9 requires States to ensure that women have equal rights with men to:

• acquire nationality;
• change nationality;
• retain nationality.

It also provides that marriage to a foreigner should not automatically:

• change the woman’s nationality;
• render her stateless;
• compel her to acquire her husband’s nationality.

Nationality and Divorce

Divorce should not automatically cause a person to lose their nationality.

Similarly, dissolution of marriage should not automatically restore or alter nationality without a legal basis.

Domestic law may provide specific procedures, but arbitrary nationality changes are inconsistent with modern international standards.

Change in Husband’s Nationality

Historically, a woman’s nationality could change automatically when her husband’s nationality changed.

Modern International Law rejects this automatic approach.

A person’s nationality should generally be determined independently of changes in the spouse’s nationality.

Nationality and Statelessness

Nationality rules relating to marriage are closely connected with the prevention of statelessness.

For example:

Woman has nationality of State A

↓

Marries national of State B

↓

State A automatically withdraws nationality

↓

State B does not automatically confer nationality

↓

Woman becomes stateless

Modern International Law seeks to prevent such situations.

Nationality of Children

Marriage-related nationality rules also affect children.

Modern International Law seeks to ensure that children have access to nationality and are not made stateless because of differences between the nationality laws of their parents.

Article 7 of the Convention on the Rights of the Child, 1989 recognises the child’s right to acquire a nationality.

Mother’s Nationality

Modern nationality law increasingly recognises the ability of a mother to transmit nationality to her children on an equal basis with the father.

This is important where:

• the father is stateless;
• the father’s nationality cannot be established;
• the child is born abroad;
• the parents have different nationalities.

Dual Nationality Through Marriage

Marriage may result in dual nationality where:

• the foreign spouse voluntarily acquires the nationality of the other spouse;
• the original State permits retention of nationality;
• the second State permits dual nationality.

For example:

Nationality A retained

Nationality B acquired through naturalisation

↓

Dual nationality

Marriage to a Stateless Person

Marriage to a stateless person does not automatically make the other spouse stateless.

A person’s nationality should generally remain independent of the nationality or lack of nationality of their spouse.

Marriage and Naturalisation

Many States provide preferential naturalisation procedures for spouses of nationals.

These may include:

• shorter residence requirements;
• simplified applications;
• reduced documentation;
• facilitated registration.

However, such procedures are governed by domestic law.

Nationality and Diplomatic Protection

Marriage does not itself determine which State can exercise diplomatic protection.

The relevant factor remains the nationality of the injured person.

For example:

Wife → National of State A

Husband → National of State B

↓

Wife injured abroad

↓

State A → potentially exercises diplomatic protection

The husband’s nationality does not automatically become the wife’s nationality.

Nationality and Consular Protection

Similarly, consular protection is generally connected with the nationality of the individual.

A spouse does not automatically acquire the right to consular protection from the other spouse’s State merely through marriage.

Important International Instruments

Convention on the Nationality of Married Women, 1957

Deals specifically with the nationality consequences of marriage and seeks to prevent automatic changes in nationality.

CEDAW, 1979

Article 9 establishes equal nationality rights for women and men.

Universal Declaration of Human Rights, 1948

Article 15 recognises the right to nationality and protection against arbitrary deprivation.

Convention on the Rights of the Child, 1989

Article 7 protects the child’s right to acquire a nationality.

Nationality of Married Persons and State Sovereignty

States retain substantial authority to determine:

• who qualifies for nationality;
• naturalisation requirements;
• nationality procedures;
• consequences of voluntary acquisition of another nationality.

However, this authority must operate consistently with applicable International Law.

Common Confusions

Does marriage automatically change nationality?

Generally, no.

Does a wife automatically acquire her husband’s nationality?

No. Modern International Law rejects automatic nationality acquisition merely because of marriage.

Can a foreign spouse acquire nationality through marriage?

Yes, where domestic law provides a procedure for naturalisation or registration.

Can marriage cause loss of nationality?

Modern International Law seeks to prevent automatic loss of nationality merely because of marriage.

Can marriage create dual nationality?

Yes, where the foreign spouse acquires another nationality while retaining the original nationality.

Does divorce automatically change nationality?

Generally, no.

Can a woman retain her nationality after marrying a foreigner?

Yes. This is an important principle of modern nationality law.

What is the main treaty specifically dealing with married women’s nationality?

Convention on the Nationality of Married Women, 1957.

Which CEDAW provision is important?

Article 9.

Topic at a Glance

Point Position Traditional approach Wife’s nationality linked to husband’s nationality Modern approach Independent nationality Marriage Does not automatically change nationality Husband’s nationality Does not automatically determine wife’s nationality Wife’s nationality Can generally be retained Naturalisation May be facilitated through marriage Divorce Does not automatically change nationality Statelessness International law seeks to prevent it Dual nationality May arise through voluntary acquisition Children’s nationality Special protection Main treaty Convention on Nationality of Married Women, 1957 CEDAW Article 9 UDHR Article 15 CRC Article 7

Quick Revision

• Nationality of Married Persons concerns the effect of marriage on the nationality of spouses.
• Historically, many legal systems followed the unity of nationality of the family.
• Modern International Law recognises independent nationality of spouses.
• Marriage should not automatically:
  • confer nationality;
  • remove nationality;
  • change nationality.
• A foreign spouse may receive a facilitated route to naturalisation under domestic law.
• Convention on the Nationality of Married Women, 1957 is the principal treaty specifically addressing this issue.
• CEDAW Article 9 requires equality between women and men regarding nationality.
• Marriage should not automatically render a person stateless.
• Divorce should not automatically alter nationality.
• A spouse may acquire another nationality voluntarily and potentially become a dual national.
• CRC Article 7 protects the child’s right to acquire a nationality.
• The essential principle is:

Marriage does not automatically determine the nationality of either spouse; modern International Law emphasises independent nationality, equality and protection against statelessness.

Conclusion

The law concerning the nationality of married persons has undergone a significant transformation. Historically, the nationality of a married woman was frequently treated as dependent upon that of her husband, sometimes resulting in automatic acquisition or loss of nationality. Modern International Law has rejected this approach in favour of independent nationality and equality between spouses. The Convention on the Nationality of Married Women, 1957 established important safeguards against automatic changes in nationality arising from marriage, divorce or changes in the nationality of a spouse. This principle is reinforced by Article 9 of CEDAW, which guarantees women equal rights with men concerning acquisition, retention and change of nationality. Marriage may still provide a facilitated route to naturalisation under domestic law, but such acquisition is generally not automatic. International Law also seeks to prevent marriage-related nationality rules from producing statelessness, while ensuring that children can acquire a nationality. Thus, the modern legal position is based on the principle that marriage does not determine nationality, and each spouse should ordinarily have an independent right to acquire, retain or change nationality in accordance with domestic law and applicable International Law.