The Empire of Nicaea (Greek: Βασιλεία Ῥωμαίων) or the Nicene Empire was the largest of the three Byzantine Greek rump states founded by the aristocracy...

early history of the Christian Church), the Nicene Creed (which comes from the First Council), and as the capital city of the Empire of Nicaea following the...

Constantinople, the Empire of Thessalonica, under the capable Theodore Komnenos Doukas, rivaled the Empire of Nicaea and the Second Bulgarian Empire as the strongest...

The members of the family formed the ruling dynasty of the Empire of Nicaea, a Byzantine rump state that existed from the 1204 sack of Constantinople...

Roman Empire: the Latin empire, the Holy Roman Empire, and the three remnants of the Byzantine Empire, the Despotate of Epirus, the empire of Nicaea, and...

The First Council of Nicaea (/naɪˈsiːə/ ny-SEE-ə; Ancient Greek: Σύνοδος τῆς Νίκαιας, romanized: Sýnodos tês Níkaias) was a council of Christian bishops...

The foundation of Constantinople in 330 AD marks the conventional start of the Eastern Roman Empire, which fell to the Ottoman Empire in 1453 AD. Only...

also gave Nicaea a temporary respite from Seljuk attacks, allowing it to concentrate on the Latin Empire to its north. The Empire of Nicaea, founded by...

well-organized Empire of Nicaea, Empire of Trebizond, and Despotate of Epirus. The prospect of a swift Latin conquest of the entire former empire ended when...

the Empire of Nicaea under the Laskaris family and the Despotate of Epirus under a branch of the Angelos family. The ensuing wars saw the Empire of Thessalonica...