Emperor Dalek (The Dalek Problem)

One Emperor Dalek, according to the Celestial Intervention Agency's research, ruled part of the Dalek Empire just before the Dalek-Movellan War.

Because the Dalek Empire governed such a large part of the universe, it had to be divided in two portions ruled by two different Emperors, who had very little contact with one another. While the original Emperor remained on Skaro, another existed on the other side of what became the Movellan lines. This Emperor was destroyed by the Movellans when war was declared between them and the Daleks, leaving the Empire under the aegis of a single Emperor once again; however, the Skaro-based Emperor struggled to keep track of the Dalek forces formerly under its counterpart's dominion, which harmed the Daleks' strategies during the Movellan War. (PROSE: The Dalek Problem)