# Frederick I, Duke of Austria

> Austrian duke

**Wikidata**: [Q433963](https://www.wikidata.org/wiki/Q433963)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Frederick_I,_Duke_of_Austria_(Babenberg))  
**Source**: https://4ort.xyz/entity/frederick-i-duke-of-austria


## References

1. The Peerage
2. Integrated Authority File
3. Freebase Data Dumps. 2013
4. CERL Thesaurus
5. [Source](https://mix-n-match.toolforge.org/#/entry/63767933)
6. Sejm-Wielki.pl