# Heinrich Merkus
**Wikidata**: [Q55683423](https://www.wikidata.org/wiki/Q55683423)  
**Source**: https://4ort.xyz/entity/heinrich-merkus


## References

1. Integrated Authority File
2. Czech National Authority Database
3. Virtual International Authority File
4. [Geographicus Rare Antique Maps biographical dictionary of cartographers](https://www.geographicus.com/P/RareMaps/merkushenricus)