# John of Gravina

> younger son of Charles II of Naples and Maria of Hungary

**Wikidata**: [Q576665](https://www.wikidata.org/wiki/Q576665)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/John,_Duke_of_Durazzo)  
**Source**: https://4ort.xyz/entity/john-of-gravina


## References

1. [Source](https://books.google.gr/books?id=5Gm79HuBY0cC&printsec=frontcover&hl=el&source=gbs_ge_summary_r&cad=0#v=onepage&q=gravina&f=false)
2. Virtual International Authority File
3. Dizionario Biografico degli Italiani
4. Freebase Data Dumps. 2013
5. Sejm-Wielki.pl