# Otto E. Plettenbacher

> Philosopher and Historian, Founder of the Gustinus Ambrosi-Society

**Wikidata**: [Q105017917](https://www.wikidata.org/wiki/Q105017917)  
**Source**: https://4ort.xyz/entity/otto-e-plettenbacher


## References

1. [Source](https://www.kremayr-scheriau.at/autoren/otto-e-plettenbacher/)
2. Integrated Authority File
3. Virtual International Authority File