The Kingmakers in Oyo are called "Oyomesi". They are a council of seven members who are responsible for selecting and appointing the next Alaafin (king) of Oyo. The Oyomesi are considered to be very powerful and influential within the Oyo Empire, and their role in selecting the king is crucial to maintaining the stability and continuity of the monarchy. The Oyomesi are also responsible for advising the Alaafin on important matters and acting as a check on the king's power.