history of ertugul gazi
Ertuğrul or Ertuğrul Gazi (Ottoman Turkish: ارطغرل, Romanized: Erṭoġrıl; Turkmen: Ärtogrul Gazy; died circa 1280) [7] was the father of Osman I. [8] Little is known about the life of Ertuğrul. According to Ottoman tradition, he was the son of Suleyman Shah, the leader of the Kayı tribe (a claim which has been criticized by many historians) [nb 1] of the Oghuz Turks, who fled western central Asia to Anatolia for escape the Mongol conquests, but he may have been the son of Gündüz Alp. [5] [10] According to this legend, after the death of his father, Ertuğrul and his followers entered the service of the Sultanate of Rum, for which he was rewarded with rule over the town of Söğüt on the border with the Byzantine Empire. [7] This set off the chain of events which ultimately led to the founding of the Ottoman Empire.