King Vegeta
The king of all saiyans. He is vegeta and tarble's father. He was also the commanding hero of the Saiyan Army, and led his people to victory in the Saiyan-Tuffle war, in which the planet was re-named in his honor. After his people are annexed by Frieza's planet trade organization, he had no choice but to pledge allegiance, but kept power over his people.
In the "Dragon History" game mode of Budokai Tenkaichi 3, King Vegeta states "You will join your father in the next world" to Frieza. This means that King Cold and King Vegeta must have some sort of interaction at some point prior to his demise. This could also just be a plot within the story (though it is a "what if" scenario battle).