Talk:Emperor Dismissed (episode)/@comment-44997843-20200806134203/@comment-27492705-20200806180706

"Emperor Lelouch vi Britannia" was a character Lelouch played. It wasn't real. He also was effectively disowned by his parents, and rejected them himself. He never declared himself Marianne's son after he took the throne after he confronted his parents. "Son of the late empress Marianne" is not a title he applies to himself anymore because she's a selfish bitch who didn't care if he or Nunnally died.

As for further canon, hate to break it to you, but there's a canonical manga that follows the anime timeline but is essentially "if the Re;surrection movie actually made sense" so in all likelihood, his choice to be Lelouch Lamperouge or L.L. is highly likely if not inevitable. So yeah, Lelouch Lamperouge.