Drenz

Drenz was the final pacifist ruler of the humanoid Daleks.

Death
In 2003, (COMIC: The Dalek Tapes, PROSE: The Dalek Dictionary) or thousands of years prior to the 2060s, he demanded that War Minister Zolfian end his plans to destroy the Thals through the use of neutron bombs, accusing him of tampering with forces beyond his control and warning that he might destroy the entirety of Skaro should he continue. Zolfian instead shot and killed Drenz, declaring that he was unfit to rule the Daleks. However, Drenz's predictions would soon prove true when the bombs were inadvertently detonated by fires resulting from a meteorite storm, devastating Skaro and all but wiping out the original Dalek race. (COMIC: Genesis of Evil)

Legacy
Drenz's assassination was chronicled in the Dalek Tapes, a collection of tapes found by the Doctor in an ancient library on a twilight world. (COMIC: The Dalek Tapes) The story was also told in the pages of TV Century 21 in 2065, (COMIC: Genesis of Evil) and in 2094 as an instalment of the Dalek Chronicles. (PROSE: The Dalek Chronicles Found!)

Something akin to the story of Yarvelling, Drenz and Zolfian was one of the creation myths formulated by species conquered by the Daleks about their oppressors. The myth, however, altered certain details, speaking of the "Sea of Ooze" and suggesting the Dalek War Machines were originally intended to be autonomous robots. Human historians who recorded the myth at length in their history of the Daleks did not give it much credence, though they granted that, for one moment at least, the Yarvelling story may have briefly "become" the true origin of the Daleks at one point during the Last Great Time War. (PROSE: Dalek: The Astounding Untold History of the Greatest Enemies of the Universe)