# Heinrich Bertram

> German opera singer (1825-1903)

**Wikidata**: [Q18020777](https://www.wikidata.org/wiki/Q18020777)  
**Source**: https://4ort.xyz/entity/heinrich-bertram-q18020777


## References

1. Integrated Authority File
2. [Source](http://www.operone.de/repro/reprob.php?seite=8)
3. CERL Thesaurus