There's a second part to the "Mandingo" movie AND the SEQUEL is called "Drum" and Ken Norton in this one also.
Drum Mandingo Sequel Review Summary:
It is hard to get more deliriously fever-pitched than the ending of Mandingo -- in which a plantation master is shot and his main slave gets boiled in oil -- but Drum (Mandingo's mangy sequel) certainly tries. Hammond Maxwell (Warren Oates), the late slave-owner's son (from Mandingo), is trying to follow in his father's footsteps and purchases Drum (Ken Norton) and Blaise (Yaphet Kotto) from bordello hostess Marianna (Isela Vega). Marianna is actually Drum's mother, although her lesbian lover Rachel (Paula Kelly) in fact brought up the boy. Thrown into the package to Hammond is Drum's girlfriend Regine (Pam Grier), who was purchased to satisfy the carnal urges of Mr. Hammond. However, Augusta Chauvet (Fiona Lewis), setting her sites on Hammond, has other plans. Drum is such a perfect specimen of slave that neither men nor women can keep their hands off of him. Drum looks stoic until a climactic slave revolt breaks out, guaranteeing more blood and carnage than Mandingo could ever hope to provide.