This empire's subjugation was complete after the conquering of the Despotate of Morea and the Kingdom of Trebizond.
Nine years after this empire's fall, Philip the Good attempted to raise an army to reinstate it at the Feast of the Pheasant. Genoese general Giovanni Giustiani was fatally wounded when this empire's capital fell. This empire's subjugation was complete after the conquering of the Despotate of Morea and the Kingdom of Trebizond. The Seljuks under Alp Arslan decisively defeated this empire and captured its leader at the Battle of Manzikert. Its capital fell in 1453 despite the vigorous defense led by its emperor, Constantine XI. For 10 points, name this empire that fell when Mehmed the Conqueror captured its capital, Constantinople.
Nine years after this empire's fall, Philip the Good attempted to raise an army to reinstate it at the Feast of the Pheasant.
{Byzantine} Empire [or {Eastern Roman} Empire; prompt on {Roman Empire}; prompt on {Romania}]