>>33530409 (OP)
Get a time machine, go to the year 1789 and prevent the French revolution. Teleport back to 2025, see that the world is monarchist. Go to the most powerful leader in europe. Replace. Go to back in time and replace him when he was a baby with you when you were a baby. Go back to 2025 conquer all of europe, rename it to the EU and bingo bango you're the princeps.
In all seriousness, there is no chance to do it as the political culture of today has no monarchist sentiment