Kerchak

In the novel Tarzan of the Apes Kerchak is the "king" of a tribal band of Mangani, a fictional species of Great Ape intermediate between real lifechimpanzees and gorillas. In the beginning of the original novel, Kerchak leads his band against Tarzan's marooned father and kills him; the infant Tarzan is saved by a female Mangani named Kala, who rears the baby and protects him against Kerchak. When Tarzan reaches adulthood, he fights and kills Kerchak and succeeds him as king of the apes.[1]

Burroughs's later Tarzan book Jungle Tales of Tarzan, which relates additional details of Tarzan's youth among the apes, is also set during the period of Kerchak's rule of the ape band. However, while the ape band is continually referenced as "the tribe of Kerchak," Kerchak himself does not appear in the book.