Ertugrul (1191/1198-1281) was the father of Osman I,the founder of the Ottoman Empire.He was the leader of the Kayi clan of the Oghuz Turks.When arriving in Anatolia from Merv (Turkmenistan) with his 400 horseman to aid the Seljuks of Rum against the Byzantines,Ertugrul set off the chain of events that would ultimately lead to the founding of the Ottoman Empire.Like his son,Osman,and his future descendants,Ertugrul is often referred to as a Ghazi,a heroic champion fighter for the cause of Islam.
Ertugrul was born in Ahlat.In 1230 he inherited the command of the Kayi tribe of the Oghuz Turks as a result of his assistance to the Seljuks against the Byzantines.Ertugrul received lands of Karaca Dag,a mountainous area near Angora (now Ankara) by Ala ad-Din Kay Qubadh I,the Seljuk Sultan of Rum.One account indicates that the Seljuk leader's rationale for granting Ertugrul land was Ertugrul to repel any hostile incursion from the Byzantines or other adversary.Later he received the village of Sogut which he conquered in 1231 together with the surrounding lands.That village where he later died became the Ottoman capital in 1299 under Osman I Ertugrul's son.Ertugrul had two other sons,Saru Batu Savci Bey and Gunduz Bey.
In the 19th century,the Ottoman Navy frigate Ertugrul was named in his honor.The Ertugrul Gazi mosque in Turkmenistan is also named in his honor.And in the TV series Dirilis Ertugrul,Ertugrul is portrayed by Turkish actor Engin Altan Duzyatan.