# Karl Fidler
**Wikidata**: [Q12028674](https://www.wikidata.org/wiki/Q12028674)  
**Source**: https://4ort.xyz/entity/karl-fidler


## References

1. [Österreichisches Biographisches Lexikon 1815–1950](http://www.austriaca.at:8000/oebl/oebl_F/Fidler_Karl_1818_1887.xml)
2. Integrated Authority File
3. Virtual International Authority File
4. [Source](https://www.geschichtewiki.wien.gv.at/index.php?curid=18643)