# Koenraad van Proseck
**Wikidata**: [Q1907239](https://www.wikidata.org/wiki/Q1907239)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Conrad_von_Plötzkau,_Margrave_of_the_Nordmark)  
**Source**: https://4ort.xyz/entity/koenraad-van-proseck


## References

1. Catalog of the German National Library