# Matti Haapoja

> Finnish serial killer (1845-1895)

**Wikidata**: [Q2604610](https://www.wikidata.org/wiki/Q2604610)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Matti_Haapoja)  
**Source**: https://4ort.xyz/entity/matti-haapoja


## References

1. BiographySampo
2. The National Biography of Finland
3. Faceted Application of Subject Terminology
4. Freebase Data Dumps. 2013