# Philipp Freiherr von Langsdorff
**Wikidata**: [Q55854449](https://www.wikidata.org/wiki/Q55854449)  
**Source**: https://4ort.xyz/entity/philipp-freiherr-von-langsdorff


## References

1. Integrated Authority File
2. Catalog of the German National Library
3. Deutsche Biographie