See: https://de.usembassy.gov/u-s-citizen-services/dual-nationality/ https://de.usembassy.gov/u-s-citizen-services/dual-nationali... German citizenship law has

See: https://de.usembassy.gov/u-s-citizen-services/dual-nationality/ https://de.usembassy.gov/u-s-citizen-services/dual-nationali... German citizenship law has changed quite a lot. You are allowed dual nationality if you are born to German parents, whether in or out of Germany. You are granted German citizenship if your parents were non-citizen German residents living in Germany, with the caveat that you must choose only one nationality upon turning 21/23. Up until around the 60's or 70's German citizenship was only passes paternally, but it not can pass through both the father and/or mother. There was no concept of jus soli before 1990. https://en.wikipedia.org/wiki/German_nationality_law#Birth_in_Germany https://en.wikipedia.org/wiki/German_nationality_law#Birth_i...