Emperor Constantine was defeated and killed in 1453 when the Ottomans finally captured Constantinople.

In the 15th century, the Ottoman Turks captured Constantinople.

In 1204, western armies captured Constantinople and ransacked the city for treasures.

Maybe he wrote this when Philip the Good called for a new crusade against the Turks, who had recently captured Constantinople.

After the attempt to capture Constantinople in 626 failed, the Avars turned towards the west and attacked the territory settled by Slavs.

He captured Constantinople from the Latins in 1261, and restored the Byzantine Empire.

In 1395, Guichard went on a crusade against the Ottoman Turks who had captured Constantinople.

In 1453, they captured Constantinople, now Istanbul, and with it the remains of the Byzantine Empire.

The pope urged a crusade against the Turks who had captured Constantinople in 1453, but his call did not receive support among the Christian princes.

The Turks captured the city in 1453 and did not eliminate the name Constantinople, but added Istanbul and used both.