# Jan Sobczyk
**Wikidata**: [Q112559974](https://www.wikidata.org/wiki/Q112559974)  
**Source**: https://4ort.xyz/entity/jan-sobczyk-q112559974


## References

1. Czech National Authority Database
2. [Source](http://mak.bn.org.pl/cgi-bin/KHW/makwww.exe?BM=1&NU=1&IM=4&WI=9810599812105606)