Leto II is the main character of
Frank Herbert's
God Emperor of Dune. He is the son of
twins born to the
messiah Paul Muad’Dib and the
fremen healer
Chani. He and his sister,
Ghanima are both of the
pre-born. Pre-born children are given adult-like awareness while still in the womb, and they have the
ancient memory of all their relatives before them. This ancient memory allows them to recall the memories and feelings of their past relations at will.
Leto II is striving to obtain what he refers to as the
Golden Path. His Golden Path required him to merge with
sandtrout to become half-human and half-
sandworm. His half-sandworm state gives him undetermined sort of
immortality. Commanding the
Empire with an all female army referred to as the
Fish Speakers, he is worshipped as a living
God, and debated to be
Shai-Hulud. His reign is called
Leto's Peace and lasted for almost four thousand years.