Ila Yara was the original kingdom founded about the 12th century by Ajagun-nla (meaning "mighty warrior or great warrior"), also nicknamed "Orangun", the legendary son of Oduduwa

Oduduwa

Oduduwa Omoluabi, Olofin Adimula, Emperor of the Yoruba, phonetically written by his people as Odùduwà and sometimes contracted as Odudua or Oòdua, is generally held among the Yoruba to be the reigning ancestor of the crowned Yoruba kings....

. The kingdom split into two after Orangun Apakiimo was installed (as the 6th Orangun) towards the end of the 15th century. A young prince Arutu, who lost the contest for the Orangun throne, led a rebellion and exodus of his supporters, and founded the Ila, Nigeria

Ila

ILA or Ila may refer to:* MV Ila, ship in service 1947-52Places:* Ila, Georgia, community in United States* Ila, Trondheim, borough in Norway* Ila, Nigeria, townPersonal names:...

 kingdom further northward (near the Isedo kingdom of Obalumo

Obalumo

- Oba'lumo as Prince of the Ancient Oba Civilization:Ọbalúmọ̀ or Ọba'lúmọ̀ , , is the titular name of the founder-king of the ancient Ìsèdó-Olúmọ̀, city-state, an ancient monarchy of the Igbomina-Yoruba...

, while Orangun Apakiimo soon evacuated Ila Yara to found the Oke-Ila

Òkè-Ìlá

Òkè-Ìlá Òràngún is an ancient city in southwestern Nigeria that was capital of an ancient Igbomina-Yoruba city-state of the same name....

kingdom further eastward (after attracting other polities including a segment of the Isedo kingdom). Both kings of the Oke-Ila and Ila kingdoms
are titled "Orangun".