Siege of Nicomedia
1333 CE.
Shown on the map at 40.767°, 29.917°.
The Siege of Nicomedia, or Siege of Izmit (Ottoman Turkish: فتحِ ازمیت, romanized: Feth-i İzmit), took place from 1333 until 1337, when Orhan laid siege to the city of Nicomedia (now İzmit). The Byzantine garrison surrendered due to lack of food and resources. Orhan's victory sealed Ottoman control of Bithynia.
Text from the Wikipedia article Siege of Nicomedia, licensed CC BY-SA 4.0.