# Nándor Udvarhelyi

> Hungarian mining engineer, land surveyor and cultural historian

**Wikidata**: [Q113795299](https://www.wikidata.org/wiki/Q113795299)  
**Source**: https://4ort.xyz/entity/n-ndor-udvarhelyi


## References

1. PIM authority
2. Catalog of the German National Library
3. [Source](https://webshop.kello.hu/az-anyaszek-szive-udvarhelyszek-kozepkori-freskos-templomai-104625)
4. Virtual International Authority File
5. Index Theologicus
6. Integrated Authority File