Slap the biatch again:
FH in DM (earlier) wrote: As she turned to go down to the meeting, she saw the letter where she'd left it on a table by the door: the latest message from their mother. Despite the special reverence held for Caladan as the place of Paul's birth, the Lady Jessica had emphasized her refusal to make her planet a stop on the hajj.
"No doubt my son is an epochal figure of history," she'd written, "but I cannot see this as an excuse for submitting to a rabble invasion."
Alia touched the letter, experienced an odd sensation of mutual contact. This paper had been in her mother's hands. Such an archaic device, the letter—but personal in a way no recording could achieve. Written in the Atreides Battle Tongue, it represented an almost invulnerable privacy of communication.
Thinking of her mother afflicted Alia with the usual inward blurring. The spice change that had mixed the psyches of mother and daughter forced her at times to think of Paul as a son to whom she had given birth. The capsule-complex of oneness could present her own father as a lover. Ghost shadows cavorted in her mind, people of possibility.
Note the emphasized bits.
1. At this point in time the populace is already thinking of Caladan as Muad'Dib's birthplace. Has Irulan already done her work?
2. If Jessica really wanted to keep the pilgrims away, she could have revealed that Kaitain was where he was born. Solidarity in the myth-making? A conspiracy extending beyond just Irulan?
3. Alia was conceived and born after Paul. She therefore has Jessica's memories of Paul's birth. Nothing here to indicate he was born anywhere but Caladan, although this would have been a perfect place for FH to bring it up. In fact, it seems addled of him NOT to bring it up, if he really intended Paul to have been secretly born on Kaitain, because Jessica and Alia are the two people who would know the truth better than anyone else in the Duniverse.
(Yeah, these are coming up because I'm looking for wood from Caladan.
"Let the dead give water to the dead. As for me, it's NO MORE FUCKING TEARS!"