A brilliant general who retired to a life of quiet religious contemplation, got put in charge of the armies of what was totally not the Papal States, and ended up winning an election for the job of Admiral. Then he tried to take over the world, claiming it was the only way to prevent the apocalypse.

Is totally not What If Napoleon Became Pope at all, not in the least.

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I have been given my charge to keep --
Well have I kept the same!
Playing with strife for the most of my life,
But this is a different game.
- "The Faeries' Siege," Rudyard Kipling