| Siege of Kulacahisar |
|---|
| Part of the Ottoman-Byzantine Wars |
| Date | 1285 |
|---|
| Location | |
|---|
| Result |
Kayi victory |
|---|
Territorial
changes |
- The Kayi Tribe captures Kulucahisar Castle from the Byzantines
- Foundation of the Ottoman Beylik
|
|---|
|
| Belligerents |
|---|
|
Kayi tribe |
Byzantium |
| Commanders and leaders |
|---|
|
Osman Gazi, Turgut Alp, Konur Alp, Akçakoca and Abdurrahman Gazi |
Aya Nikola |
| Strength |
|---|
|
300 gazis |
1,000 |
The siege of Kulacahisar or raid of Kulacahisar was a battle fought between the Byzantines and the Turks under the command of Osman Gazi in 1285 for control of Fort Kulaca.