# William I of Guelders and Jülich

> Duke of Guelders

**Wikidata**: [Q69607](https://www.wikidata.org/wiki/Q69607)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/William_I_of_Guelders_and_Jülich)  
**Source**: https://4ort.xyz/entity/william-i-of-guelders-and-j-lich


## References

1. Biografisch Portaal
2. Genealogics
3. Integrated Authority File
4. Freebase Data Dumps. 2013
5. Virtual International Authority File
6. CERL Thesaurus
7. Sejm-Wielki.pl