John III Vatatzes
Emperor of Nicaea 1221–1254, who made it the strongest Greek successor state.
Person1192 O.S. – 3 Nov 1254 O.S.
- Identifiers
- Wikidata Q37072
Emperor of Nicaea 1221–1254, who made it the strongest Greek successor state.
Person1192 O.S. – 3 Nov 1254 O.S.
