Other ways of gaining German citizenship
Article
Can citizenship be acquired through adoption?
Section 6 of the Nationality Act
A child who is below eighteen years of age at the time of application for adoption shall acquire citizenship as a result of valid adoption by a German under German law.
How do ethnic German repatriates and their family members acquire German citizenship?
Section 7 of the Nationality Act
Persons who are admitted into Germany as ethnic German repatriates are automatically granted German citizenship when they are issued a repatriates certificate in accordance with Section 15 para. 1 or para. 2 of the Federal Expellees Act. The same applies to spouses married to an ethnic German repatriate for at least three years before leaving the area subject to expulsion, and to children and grandchildren of ethnic German repatriates.
To whom do the provisions in Article 116 para. 2 of the Basic Law apply?
Former German citizens who were deprived of their citizenship by the Nazi regime between 30 January 1933 and 8 May 1945 on political, racial or religious grounds may have their German citizenship restored upon application or residence in Germany. The same applies to their children and grandchildren.