# John I, Count Palatine of Zweibrücken

> Count Palatine and Duke of Zweibrücken (1550-1604)

**Wikidata**: [Q657636](https://www.wikidata.org/wiki/Q657636)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/John_I,_Count_Palatine_of_Zweibrücken)  
**Source**: https://4ort.xyz/entity/john-i-count-palatine-of-zweibr-cken


## References

1. Integrated Authority File
2. The Peerage
3. Freebase Data Dumps. 2013
4. Virtual International Authority File
5. CERL Thesaurus
6. Sejm-Wielki.pl