After centuries of decline, the Byzantine Empire's last stronghold, Constantinople, fell to Ottoman forces under Sultan Mehmed II in May 1453, following a siege that combined traditional tactics with massive new cannon.

Background

Constantinople's land walls had withstood sieges for over a thousand years, but Mehmed II's forces brought enormous cannon capable of battering sections of the fortifications that had never before been breached.

“Walls that had held for over a thousand years finally gave way to cannon no army had faced before.”

The Key Events

After weeks of bombardment and a final assault on May 29, 1453, Ottoman troops broke through the walls, and the last Byzantine emperor, Constantine XI, reportedly died fighting near the breach.

Legacy and Lasting Impact

The conquest gave the Ottoman Empire control of a key crossing point between Europe and Asia and is often cited, alongside other factors, as one marker for the end of the medieval period and the start of new patterns in European trade and exploration.

Quick facts
  • The siege lasted roughly seven weeks before the final assault.
  • Mehmed II's forces used some of the largest cannon built up to that time.
  • The city, renamed Istanbul, became the Ottoman Empire's capital.
Ottoman Empire Byzantine Empire Sieges

References & Further Reading

  1. Roger Crowley, *1453: The Holy War for Constantinople*
  2. Britannica, entry on the Fall of Constantinople
  3. Steven Runciman, *The Fall of Constantinople 1453*
  4. The Metropolitan Museum of Art, essay on the Ottoman conquest of Constantinople