Duke Leto

"How do we approach the study of Muad'Dib's father? A man of surpassing warmth and surprising coldness was the Duke Leto Atreides. Yet, many facts open the way to this Duke: his abiding love for his Bene Gesserit lady; the dreams he held for his son; the devotion with which his men served him. You see him there -- a man snared by Destiny, a lonely figure with his light dimmed behind the glory of his son. Still, one must ask: What is the son but an extension of the father?
from "Muad'Dib, Family Commentaries" by the Princess Irulan.