Reincarnated as Napoleon II
Napoleon Bonaparte shaped Europe with wars, treaties, and new laws. His name filled maps, thrones, and textbooks. His son had none of that. Born in a palace, raised behind guarded walls, he never commanded armies or held power. He lived under supervision, watched by diplomats, used as a symbol, forgotten by history. The father became an emperor. The son became a rumor.
A modern engineer opens his eyes in a dim royal nursery in 1811 Paris. Turns out, he was reincarnated as Napoleon the Second. And he knew the fate of the child of Napoleon, about his short-lived life, or if there was a life for him at all. Refusing this fate, he would alter the course of history using his modern knowledge in history, politics, and science.