# Historisches Archiv des Erzbistums Köln
**Wikidata**: [Q28734946](https://www.wikidata.org/wiki/Q28734946)  
**Source**: https://4ort.xyz/entity/historisches-archiv-des-erzbistums-k-ln


## References

1. directory of German Library Codes
2. [Source](https://archive20.hypotheses.org/5266)
3. [Source](https://www.archivesportaleurope.net/directory/-/dir/ai/code/DE-2113)
4. National Library of Israel Names and Subjects Authority File