# Piotr Wiśniewski

> botanist (1881-1971)

**Wikidata**: [Q20706171](https://www.wikidata.org/wiki/Q20706171)  
**Source**: https://4ort.xyz/entity/piotr-wi-niewski-q20706171


## References

1. Virtual International Authority File
2. Sejm-Wielki.pl