Çaka Bey and The Seljuk Turks
The Turks first captured Smyrna under the Seljuk commander Çaka Bey in 1076, along with Klazomenai, Foça and a number of the Aegean Islands. Çaka Bey (known as Tzachas among the Byzantines) used İzmir as a base for his naval operations. After his death in 1102, the city and the neighboring region was recaptured by the Byzantine Empire. The port city was then captured by the Knights of Rhodes when Constantinople was conquered by the Crusaders during the Fourth Crusade in 1204, but the Nicaean Empire would reclaim possession of the city soon afterwards, albeit by according vast concessions to their Genoese allies who kept one of the city's castles.