After the fall of this empire, its successor state of Trebizond remained unconquered for another eight years.
After the fall of this empire, its successor state of Trebizond remained unconquered for another eight years. One ruler of this state, the "Armenian," restored a policy that flourished under its Isaurian Dynasty, which saw the governance of Irene. Strong emperors of this state included Michael VIII (*) Paleologos, Heraclius, and one that enjoyed gouging out the eyes of enemy Bulgars. In the 8th and 9th centuries, this empire was swept by iconoclasm. The Fourth Crusade saw an invasion of, for 10 points, what empire ruled by Justinian and based in Constantinople?
After the fall of this empire, its successor state of Trebizond remained unconquered for another eight years.
{Byzantine} Empire [or {Eastern Roman} Empire; do not accept or prompt on "{Roman Empire}"]