# Patrick Karl O'Brien

> British historian

**Wikidata**: [Q3369740](https://www.wikidata.org/wiki/Q3369740)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Patrick_K._O'Brien)  
**Source**: https://4ort.xyz/entity/patrick-karl-o-brien


## References

1. BnF authorities
2. Czech National Authority Database
3. general catalog of BnF
4. Virtual International Authority File
5. CiNii Research
6. [Source](https://www.ae-info.org/ae/Member/O'Brien_Patrick)
7. E-Theses Online Service
8. Autoritats UB
9. National Library of Israel Names and Subjects Authority File