I actually think it could work for the son of a fervent napoleonist, if paired with the more approachable nickname
Leo. I remember it was the name of a parrot who inexplicably appeared as a recurring character in my primary school history text books.
masculine list:
https://www.behindthename.com/pnl/191050/124079feminine list:
https://www.behindthename.com/pnl/191050/124080