# Ludwik Kalkstein

> Polish Gestapo agent (1920-1994)

**Wikidata**: [Q6699452](https://www.wikidata.org/wiki/Q6699452)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Ludwik_Kalkstein)  
**Source**: https://4ort.xyz/entity/ludwik-kalkstein


## References

1. Sejm-Wielki.pl