Who is The King of Dahomey from The Viceroy of Ouidah and what is their importance?

The King of Dahomey is Kankpé's half-brother. The reigning king when Francisco arrives in Dahomey, he has a reputation as a half-crazed, bloodthirsty ruler. At first, it appears he will kill Francisco, but the two become friends for a while. The king then turns on Francisco and throws him in prison, but then the king abdicates when his ministers tell him that the spirits of the Dead Kings have rejected him. Replaced on the throne by his half-brother, the former king spends the next forty years in prison. This king represents all the wildness, superstition, and danger of life in Dahomey.