# Frederick William Kettler

> Duke of Courland (1692-1711)

**Wikidata**: [Q63494](https://www.wikidata.org/wiki/Q63494)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Frederick_William,_Duke_of_Courland)  
**Source**: https://4ort.xyz/entity/frederick-william-kettler


## References

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