# Niels Jacob Hansen

> opera singer

**Wikidata**: [Q4994104](https://www.wikidata.org/wiki/Q4994104)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Niels_Jacob_Hansen)  
**Source**: https://4ort.xyz/entity/niels-jacob-hansen


## References

1. [Dansk Biografisk Leksikon, 3rd edition](https://biografiskleksikon.lex.dk/Niels_Hansen_-_operasanger)
2. [Source](http://viaf.org/viaf/data/viaf-20170101-links.txt.gz)
3. Virtual International Authority File
4. BnF authorities