# Nikolaus Ostrorog
**Wikidata**: [Q20068535](https://www.wikidata.org/wiki/Q20068535)  
**Source**: https://4ort.xyz/entity/nikolaus-ostrorog


## References

1. Source
2. Catalog of the German National Library
3. Sejm-Wielki.pl
4. [Source](https://www.ipsb.nina.gov.pl/a/biografia/mikolaj-ostrorog)
5. Virtual International Authority File