# John Douglas, 9th Marquess of Queensberry

> Scottish noble (1844-1900)

**Wikidata**: [Q335896](https://www.wikidata.org/wiki/Q335896)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/John_Douglas,_9th_Marquess_of_Queensberry)  
**Source**: https://4ort.xyz/entity/john-douglas-9th-marquess-of-queensberry


## References

1. Integrated Authority File
2. Source
3. The Peerage
4. Czech National Authority Database
5. Virtual International Authority File
6. SNAC
7. Freebase Data Dumps. 2013
8. FactGrid