Umbaste
Umbaste was the Lord President of the Homeworld immediately before the War. He was nominated as part of the Faraway Declaration by his predecessor, whose untimely death left him very shaken. Upon his election, the other Houses hastily nominated the War King to their Council, since Umbaste had little-to-know will of his own and would just approve the War King's forty years of plans and preparations. However, without giving any warning to his peers, Umbaste opened his biodata directly to the caldera and sunk into a fugue state for a full year. When he returned, he could only repeat the word "One", and he disintegrated himself after several days. (PROSE: The Book of the War) Mr. Smith suggested that Umbaste did not commit suicide and that there was more to his death. (AUDIO: A Labyrinth of Histories)
