# Duchy of Silesia

> Medieval duchy in the historic region of Silesia (1138-1249/1335/1742)

**Wikidata**: [Q568638](https://www.wikidata.org/wiki/Q568638)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Duchy_of_Silesia)  
**Source**: https://4ort.xyz/entity/duchy-of-silesia


## References

1. Freebase Data Dumps. 2013