In order to reestablish a citizenship which has i.e. been annulled by any reason, one needs certified(!) copies from German registers - be it church records or civil records.
Records obtained from Archion do not(!) meet that requirement!
(As an aside a certified transcription of historic German script to today’s script is also required.)
In case that does not meet the intention of your question, please provide more details.
Thanks, Vera