Christian States and Ottoman Diplomacy

Name: Christian States and Ottoman Diplomacy
Start: 1440
End: 1449

Type Event Region Europe Time 1440–1449

In the 1440s, amid Ottoman expansion in the Balkans, the empire engaged in complex diplomatic and military maneuvering with Hungary, Poland, Byzantiu…

Timeline

1444Szeged · HungaryHungarian regent John Hunyadi and Ottoman sultan Murad II signed a ten-year peace at Szeged in 1444, but Pope Eugene IV urged a crusade; King Władysław III of Hungary and Vlad II of Wallachia (Dracul) led forces east, breaking the treaty.
1444Varna · BulgariaThe crusaders fought a decisive battle against Ottoman forces near Varna; King Władysław III was killed and the coalition suffered a crushing defeat, severely weakening Christian states' ability to organize large-scale anti-Ottoman alliances and further dashing Byzantine hopes of Western military aid.
1446–1449Constantinople · ByzantineJohn VIII and his successor Constantine XI continued seeking Western aid from Constantinople while maintaining tribute and diplomatic maneuvering toward the Ottomans; aid from the Papacy and maritime republics like Venice was limited, and Byzantium's position grew ever more precarious.

Sources

Battle of Varna https://www.britannica.com/event/Battle-of-Varna
The Ottoman Empire: 1300–1650 — Colin Imber (2009)
The Fall of Constantinople 1453 — Steven Runciman (1965)