One Piece — "Your true father is Gold Roger, the King of the Pirates!!"
From Volume 56 - Chapter 550 / Season 8 Episode 459. The unfortunate execution of Portgas D. Ace has arrived. To the world, this is a ploy to anger Whitebeard and start a war with one of the Four Emperors of the Sea. To us the audience, it seems like it'll also be a blow to the Revolutionary Army. Given Ace and Luffy are brothers, they both surely share the same father, though Ace seems to have some sort of grudge with Dragon. But Sengoku and Garp know the true meaning, and that's to end the life of the most likely candidate for future Pirate King!!!!