I know that the Asarah Harugei Malchus took place over generations. Nonetheless, who is recognized as being the original antagonist? Who is the one who went to Chazal about the claim about Yosef's brothers?
Can’t give you a source but from all the different versions that I’ve heard of the story, it was either Turnus Rufus (the brutal governor who had a particular quarrel with Rabbi Akiva since he stole his wife) or Hadrian. And btw if you want a really great and detailed account of the Ten Martyrs with background, watch this video: https://youtu.be/PZwXmZE87_s