Vegeta (Alternate Earth-11201984)

Vegeta is the prince of all saiyans, much like his counterpart. However, when he and the other Saiyans came to the earth, they were joined by Turles and Menma and went to Namek to fight Frieza, and they succeeded in killing Frieza, at the cost of immortality due to the loss of the Dragon Balls. So instead, Vegeta crowned himself emperor, taking everything that Frieza had.