# Martin Helwig

> German cartographer of Silesia (1516–1574)

**Wikidata**: [Q75667](https://www.wikidata.org/wiki/Q75667)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Martin_Helwig)  
**Source**: https://4ort.xyz/entity/martin-helwig


## References

1. Czech National Authority Database
2. Virtual International Authority File
3. BnF authorities
4. Cunradi: Silesia togata, 1706
5. International Standard Name Identifier
6. Freebase Data Dumps. 2013
7. [BnF authorities](http://data.bnf.fr/ark:/12148/cb15326326r)
8. [Kaart van Silezië. 1663](https://n2t.net/ark:/33862/collect/644399)
9. Sejm-Wielki.pl
10. Bibliography of the History of the Czech Lands