# John III Vatatzes - Roman Emperor at Nicaea

URL: https://roman-history.com/rulers/john-iii-vatatzes
Reign: 1222 – 1254 CE
Dynasty: Laskarids of Nicaea
Wikipedia: https://en.wikipedia.org/wiki/John_III_Vatatzes

Expanded Nicaea and strengthened its economy.

## Succession
- Preceded by: [Theodore I Laskaris](https://roman-history.com/rulers/theodore-i-laskaris)
- Succeeded by: [Theodore II Laskaris](https://roman-history.com/rulers/theodore-ii-laskaris)