The Siege of İnegöl was among the first Ottoman conquests and set off a chain of events leading to the founding of the Ottoman Beylik.
Key Facts
- Year
- 1299
- Kayı commander
- Turgut Alp
- Byzantine governor
- Agios Nikolaos (Tekfur Nikolaos)
- Outcome for governor
- Executed by Turgut Alp after siege
- Preceded by
- Siege of Kulaca Hisar
- Triggered
- Battle of Bapheus
Location
Cause → Event → Consequence
Following the early expansion of the Kayı tribe under Osman I, the Kayı forces sought to extend their control over Byzantine-held fortifications in northwestern Anatolia. The fort of İnegöl, governed by Agios Nikolaos, was among the targets in this early phase of Ottoman territorial consolidation, coming shortly after the siege of Kulaca Hisar.
In 1299, the Kayı army under Turgut Alp besieged the fort of İnegöl, defended by its Byzantine governor Agios Nikolaos. The siege ended in a Kayı victory, and following the fort's fall, Tekfur Nikolaos was executed by Turgut Alp, marking one of the earliest recorded Ottoman conquests.
The fall of İnegöl prompted the Byzantines to mount a counteroffensive, resulting in the Battle of Bapheus where they attempted to reclaim lost territory. That defeat in turn contributed to the Siege of Bursa and ultimately to the establishment of the Ottoman Beylik as a recognized political entity.
Belligerents & Mobilization Analysis
Side A
1 belligerent
Turgut Alp.
Side B
1 belligerent
Agios Nikolaos (Tekfur Nikolaos).