# Otto Julius Hagelstam
**Wikidata**: [Q5782206](https://www.wikidata.org/wiki/Q5782206)  
**Source**: https://4ort.xyz/entity/otto-julius-hagelstam


## References

1. [Dictionary of Swedish National Biography](https://sok.riksarkivet.se/Sbl/Presentation.aspx?id=13498)
2. BiographySampo
3. The National Biography of Finland
4. Den introducerade svenska adelns ättartavlor
5. [Svenskagravar.se](http://www.svenskagravar.se/gravsatt/45624463)
6. Virtual International Authority File
7. CERL Thesaurus
8. [Source](https://runeberg.org/nfbj/0557.html)
9. [Svenskt biografiskt handlexikon](https://runeberg.org/sbh/a0440.html)
10. [LIBRIS. 2012](https://libris.kb.se/katalogisering/mkz13xz524kz5xl)