ERTUGRUL- EPISODE 21- Season 5

Ertuğrul said that he accepted the offer of Uranos to save İlbilge and brought the materials to the castle with the gold he wanted. Turgut and Beybolat, who came out of the material chests, saved İlbilge, and Uranos, who learned this, had placed his dagger in the throat of Ertuğrul.