Children born in wedlock to a Danish mother and a father of foreign nationality during the period of January 1, 1961 to December 31, 1978 did not obtain Danish nationality by birth. As an alternative, Danish mothers had the option to make a declaration by which their child obtained Danish nationality, cf. s. 2(2) of Act No. 117 of March 29, 1978.
Children born during this period whose mother did not make a declaration to this effect may apply for Danish nationality by naturalization according to the “Princess Rule”.
Applying for naturalization under the Princess Rule does not require current residence in Denmark, however you must have either lived in Denmark for a continuous period of 3 months or visited for a cumulative 12 months before the age of 22 (see the 22-year rule above).
You are also exempt from passing the Danish citizenship test, including the language test. However, you must be able to conduct an ordinary conversation in Danish, evaluated by a Danish embassy or consulate.
Other requirements for obtaining Danish nationality by naturalization must be fulfilled. You may not be eligible, if you have been sentenced to imprisonment longer than 18 months or have been convicted of other offences, and you may not have debt to the Danish authorities.
Children cannot be included in the application, unless they are residents of Denmark.
The application is available here
For information on how to submit your application, as well as a list of required information and documentation to be included, please see Indgivelse af ansøgningen under "Andre ansøgergrupper" and "Prinsessereglen" (in Danish only).
In order to schedule evaluation of Danish language proficiency, please contact the Embassy or nearest Danish speaking consulate.
For further information, please contact the Embassy or the nearest Consulate General.