# Siege of Nishapur

> 1221 siege during the Mongol invasion of the Khwarazmian Empire

**Wikidata**: [Q5961259](https://www.wikidata.org/wiki/Q5961259)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Siege_of_Nishapur_(1221))  
**Source**: https://4ort.xyz/entity/siege-of-nishapur