Helikore/Nicaea
settlement · 550 BC – 640 AD
Helikore/Nicaea (modern İznik, Turkey) was a Greek city of northwestern Anatolia. It was the site of the First and Second Councils of Nicaea and was the interim capital city of the Byzantine Empire between 1204 and 1261.

- Coordinates
- 40.42909, 29.71468
- Also known as
- Helikore, Nicaea, Nicea (la), Nicea (la)
- Dating
- attested
Sources
- Pleiades: A Gazetteer of Past Places · CC BY 3.0Pleiades: A Gazetteer of Past Places (CC BY 3.0)
- Wikidata · CC0 1.0Wikidata (CC0)