"Prince Tshúkuma [Chukwuma]" of Abö, illustration from an 1854 voyage by William Baikie. Internet Archive.
[At Abö] we learnt that King Obí [Osai] had been dead for nearly nine years, and that since that time there had been no regular king. At Abó, the chief power is elective, and after the death of Obí two parties sprung up, one of which supported the claims of his son, while the other advanced as their candidate an influential person named Orísa. The two sections were respectively entitled the king's people and the Oshiodápara party. Obí's friends were unanimous in their selection of Obí's second son, named Ajé, an active, intelligent, young man ; and this was acquiesced in by his less energetic and more peaceful brother Okúrobi or Tshúkuma.