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Byzantine-Ottoman Conflict
In the 1330s, relations between the Byzantine Empire and the Ottoman beylik shifted rapidly from limited cooperation to full confrontation;…
Timeline
- 1330–1333Constantinople · ByzantineAndronikos III received Ottoman military aid during his struggle for the throne, and the two sides established an alliance through marriage (Orhan married Princess Theodora). Ottoman reinforcements participated in Byzantine operations against Serbia, though border raids had already occurred from time to time.
- 1333–1339Bithynian frontier · BithyniaAround 1333 the two sides concluded a peace treaty, but the Ottoman conquest of Nicaea and coastal towns rendered it a dead letter. The Byzantines were unable to recover lost ground; strategic strongholds in northwestern Asia Minor fell one after another into Ottoman hands, and relations turned fully hostile.
Sources
- The Last Centuries of Byzantium, 1261–1453 — Donald M. Nicol (1993)
- The Ottoman Empire, 1300–1650: The Structure of Power — Colin Imber (2002)