# Herman Wallén

> Finnish opera singer

**Wikidata**: [Q77029252](https://www.wikidata.org/wiki/Q77029252)  
**Source**: https://4ort.xyz/entity/herman-wall-n


## References

1. Catalog of the German National Library
2. [Source](https://www.diariodemallorca.es/part-forana/2024/07/01/fallece-sineu-cantante-opera-martti-104717964.html)
3. [Source](https://hymy.fi/terveys-hymy/ketodieettia-ja-ravintolisia-ei-vaivoja-ei-laakitysta/)
4. Virtual International Authority File
5. CiNii Research
6. National Library of Israel Names and Subjects Authority File