Wiki information Tzachas:

Noble person, Deceased Person, Person

Tzachas, also known as Chaka Bey was an 11th-century Seljuk Turkish military commander who ruled an independent state based in Smyrna.

Seljuq campaigns in the Aegean
Military Conflict, Event

The Seljuq campaigns in the Aegean refer to the ground and naval actions conducted by the Seljuk Turks, chiefly under the leadership of Tzachas of Smyrna against the Byzantine Empire. A fierce opponent, Tzachas constructed the first Turkish navy and...