Siege of Nicomedia

Siege of Nicomedia
Part of the Byzantine-Ottoman wars
Date 1337 Location Nicomedia, Opsikion, Byzantine Empire (modern-day İzmit, Kocaeli, Turkey) Result Ottoman victory
Belligerents
Byzantine Empire	Ottoman Sultanate
Commanders and leaders
Unknown	Orhan
Strength
Unknown	Unknown
Casualties and losses
Unknown	Unknown

After its foundation by Osman I in about 1299, the Ottoman Empire expanded across Bithynia in north-west Anatolia by capturing territory from the Byzantine Empire. Osman was succeeded by his son Orhan in about 1324 and, following long sieges, he took the important cities of Bursa (1326) and Nicaea (1331). Next, Orhan besieged Nicomedia from 1333 to 1337. The Byzantine garrison surrendered due to lack of food and resources. Orhan's victory sealed Ottoman control of Bithynia.