# Empire of Nicaea

> successor state of the Byzantine Empire when the crusaders conquered Constantinople at Fourth Crusade of 1204

**Wikidata**: [Q181254](https://www.wikidata.org/wiki/Q181254)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Empire_of_Nicaea)  
**Source**: https://4ort.xyz/entity/empire-of-nicaea


## References

1. Virtual International Authority File
2. Freebase Data Dumps. 2013
3. [Source](https://www.getty.edu/research/tools/vocabularies/tgn/)
4. [Source](https://encyklopedia.pwn.pl/haslo/Nicejskie-Cesarstwo;3947133.html)