# Frederick IV, Count of Zollern

> count of Zollern (c. 1188 – c. 1255)

**Wikidata**: [Q66579](https://www.wikidata.org/wiki/Q66579)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Frederick_IV,_Count_of_Zollern)  
**Source**: https://4ort.xyz/entity/frederick-iv-count-of-zollern


## References

1. Genealogics
2. The Peerage
3. Virtual International Authority File
4. Freebase Data Dumps. 2013
5. CERL Thesaurus