[dragandj]

Do you have any links to historical documents about burning Christians by Nero? From what I've read, a large part of such stories sprang up mostly (or solely) from the early and medieval christian sources, which were dominant or even only sources at the time when christian church had the leading role in what was left of Western Roman Empire.

So, they needed a villain for the martyrdom of their saints, and Nero was very convenient to paint as one.