Overview
Ertuğrul Bey is the main protagonist in the Turkish television series Diriliş: Ertuğrul, portrayed by Engin Altan Düzyatan. He also appears in the sequel, Kuruluş: Osman, where he is played by Tamer Yiğit and is referred to as Ertuğrul Gazi. The character is based on Ertuğrul, the father of Osman I.
From Wikipedia (CC BY-SA 4.0).