When my father, the Padishah Emperor, heard of Duke Leto's death and the
manner of it, he went into such a rage as we had never before seen. He blamed
my mother and the compact forced on him to place a Bene Gesserit on the throne.
He blamed the Guild and the evil old Baron. He blamed everyone in sight, not
excepting even me, for he said I was a witch like all the others. And when I
sought to comfort him, saying it was done according to an older law of
self-preservation to which even the most ancient rulers gave allegiance, he
sneered at me and asked if I thought him a weakling. I saw then that he had
been aroused to this passion not by concern over the dead Duke but by what
that death implied for all royalty. As I look back on it, I think there may
have been some prescience in my father, too, for it is certain that his line
and Muad'Dib's shared common ancestry.

-- "In My Father's House," by the Princess Irulan
--[dune]--