Given his abilities and ambition, it didn’t seem like a wise decision to keep him alive. Was it just out of respect for what he’d accomplished? The other theory I had was they didn’t want to upset any French citizens who were still loyal to him.
This post from /u/BuenaventuraBaez may be of interest:
Here you can find answers to previously asked similar questions:
/u/kieslowskifan in Why was Napoleon exiled rather than executed
/u/alexistheman in Why was Napoleon exiled rather than executed
/u/LordSariel in Why was Napoleon exiled and not executed?
a deleted account in Why was Napoleon Bonaparte exiled twice instead of executed?