# Michael Sonnenfeld

> Austrian entrepreneur (1863-1938)

**Wikidata**: [Q60822502](https://www.wikidata.org/wiki/Q60822502)  
**Source**: https://4ort.xyz/entity/michael-sonnenfeld


## References

1. Integrated Authority File
2. Catalog of the German National Library
3. BillionGraves
4. [Source](https://www.biographien.ac.at/oebl/oebl_S/Sonnenfeld_Michael_1863_1938.xml)
5. Memento Vienna
6. Österreichisches Biographisches Lexikon 1815–1950