1204 AD. The unthinkable happened. The Imperial Capital, Constantinople, has fallen.
The Crusaders, led by the Republic of Venice, stormed over the City.
Civil War, Crusades and Commercial Rivalry... All of these factors have contributed to Byzantium's demise.
But everything is not lost... 3 Greek-Roman states have emerged and challenge the supremacy of the Latins.
Amongst them, the Empire of Nicaea. It has resisted the Latins and the Turks and its rulers want to take Constantinople back.
But who will seize the big prize ? The Nicaeans, the Epirotes, the Bulgarians, Trebizond ?
In 1255, Nicaeans rule over most of the old empire and are closing on the ancient capital built by Constantin the Great...