An annual celebration called "Ìmárúgbó" (or "Òkùnrìn") festival was instituted between the two city-states during which the King Ọ̀ràngún leaves his palace with his chiefs to pay a day-long homage to his primogenitor, the King Ọba'lúmọ̀ in his (the Ọba'lúmọ̀'s) palace.
While it has maintained the royal title of Oba'lúmò, the kingdom of Ìsẹ̀dó has in modern times been virtually engulfed by the present-day Ila O&#x323;rangun such that the old Isedo township now lies (at ), in the southeast quadrant of Ila Orangun.