# Duchy of Kalisz

> Polish duchy (1177–1279)

**Wikidata**: [Q16570037](https://www.wikidata.org/wiki/Q16570037)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Duchy_of_Kalisz)  
**Source**: https://4ort.xyz/entity/duchy-of-kalisz