# Otto Kröpfel
**Wikidata**: [Q112347560](https://www.wikidata.org/wiki/Q112347560)  
**Source**: https://4ort.xyz/entity/otto-kr-pfel


## References

1. Czech National Authority Database
2. [regional database of the Municipal Library of Jindřichův Hradec](https://jh.tritius.cz/authority/567498)