Ertugrul Ghazi is the founder of the Ottoman Caliphate. And Ertugrul Ghazi became the chief of the Qai tribe. After the death of his father Suleiman Shah, the Ahl al-Ahl came first.Then he went to Aleppo. 1232 Where Sultan Salahuddin Ayubi’s grandson Aziz ruled, first Ertugrul Ghazi befriended Aziz then married Sultan Alauddin’s niece Halima Sultan with whom he had three sons.He befriended the Ayyubids and the Seljuks, conquered a stronghold of the Crusaders near Aleppo, and then became very close to Ertugrul Sultan Allauddin. As the Mongol invasion approached, Ertugrul Ghazi defeated Noyan, a key Mongol leader.

Source: Pakistan Today May 15, 2021 18:22 UTC