Dune As
Dune begins, Feyd-Rautha figures heavily in the Baron's plans to gain power for House Harkonnen. The Baron favors the handsome and charismatic Feyd over Feyd's older brother
Glossu Rabban ("The Beast") because of Feyd's intelligence and his dedication to the Harkonnen culture of carefully planned and subtly executed
sadism and cruelty, as opposed to Rabban's outright brutality. Feyd's ambition and impatience to inherit the Baron's title and power spur him to attempt his uncle's assassination. The attempt fails, prompting the Baron to reveal to his nephew the lofty plans he has for him, possibly to even have him ascend the throne as Emperor. The Baron explains that the elevation of House Harkonnen means more to him than power in his own lifetime, so if Feyd promises to forego any further assassination attempts, he will voluntarily step down and let his nephew succeed him—after his plot against the Emperor has succeeded. Feyd agrees, but as punishment for his assassination attempt, the Baron forces Feyd to single-handedly slaughter all the female slaves who serve as his lovers so that Feyd will learn the price of failure. Named after his maternal grandfather, Rautha Rabban, who had been murdered by Glossu, Feyd becomes honorable Abulurd's hope for a son who would not have to inherit the dishonor of the name Harkonnen, and a worthy heir in comparison to his older, murderous son, Glossu. The Baron decides to take the infant Feyd from his father to raise on the Harkonnen homeworld
Giedi Prime as another possible heir for himself, and as punishment for Abulurd's attempts to sever all his ties to House Harkonnen. In time, the Baron comes to favor Feyd over Glossu. ==In adaptations==