Mobile Suit Gundam Wing Season 1 Episode 5

Relena: Father, I'll always be your daughter.

Darlian: I have a confession to make. I'm not your biological father.
Relena: (gasps)
Darlian: You've got to believe what I'm telling you. Your real name is Relena Peacecraft. You're the daughter of the Peacecraft family that was so well known for its total commitment to pacifism.
Relena: But, I don't know what you're saying.
Darlian: I'm a member of the senate that served their country in the past. But long ago the kingdom was demolished by the Alliance and I decided to take you in as my daughter when I made my escape.
Relena: Father, that's not possible!
Darlian: Relena, watch out for the OZ organization! (dies)
Relena: Don't die on me! No, father, no!!!!

Darlian: (To Relena) Never forget how beautiful the Earth looks from afar.
Lady Une: Get a good look cause you will never see it again...