Exalted: In A Mirror Darkly
Liao Khan is a powerful ghost, and the Grandfather of Liao Tsien. Tsien has some memories of his grandfather from his early childhood, but shortly thereafter he was told his grandfather had died.
It now appears that Liao Khan has been dead a lot longer than that. In fact, he has recently suggested to Tsien that his father was, in fact, a Ghost Blooded.