User blog comment:Inept Wiki User/Cosmos in the Lostbelt: Post-Prologue, Pre-Anastasia Information & Speculation/@comment-4616657-20180327163507/@comment-4802891-20180328080059

I just come across some speculative videos and got a new perspective on Rider, which seems to be a viable candidate : Aeneas

I'll leave you all to make some research, but the main point of interest is that he is Trojan, brother of Hector, he is a traveller and, more importantly, he was granted access to the Elysian Fields by using a golden bough (a sturdy branch). According to legends, he is also the progenitor of many civilizations including the Romans (as an ancestor to Romulus and Remus) and even the Britain royalty (placing Arthur as his descendant). Julius Caesar claimed that he is his descendant through his lineage with Aphrodite (Aeneas' mother).

That's a big dump, or because of that golden bough alone, I'm willing to think he might be Aeneas.