Is it foolish to think that Varys, who has spies everywhere and was aware of Rhaegar's intentions to depose his father, knows of Jon Snow's true parentage? There's no textual evidence (that I can think of) to support it (for instance, his conversations with Ned about Robert's bastards), but it seems unlikely that one of the greatest spymaster's in history wouldn't know the greatest secret in Westeros' recent history.
First off I should note I donât believe Varys was right about âRhaegarâs intentions to depose his fatherâ â I think he was deliberately stirring shit in House Targaryen as part of his Blackfyre restoration plans, and the supposed secret backer of the Harrenhal tourney being Rhaegar is a red herring placed in TWOIAF on purpose. (I think thereâs a lot of things Yandel is very wrong about in TWOIAF, and while some like magic and the Others and such are obvious, thereâs many political mistakes and oversights too. Heâs a very unreliable narrator, deliberately so.)
Secondly, Varys is an excellent spymaster, but he doesnât know everything. He only knows what his little birds can see or hear. (Like, Olenna had loud singing cover up her conversation with Sansa, Littlefinger had Sansa meet Dontos in the godswood specifically to avoid the little birds, and thatâs why LF reported the Tyrell betrothal plan to Tywin while Varys hadnât heard anything about it. Also Varys doesnât seem to have had any awareness of Sandor and Sansaâs interactions.) Note that Varys was still fairly new to Westeros at the time of Robertâs Rebellion and almost certainly didnât have a full spy network yet, certainly not in the Red Mountains where the Tower of Joy was, and probably not in Starfall either. Jaime relates that during the Rebellion âPrince Rhaegar could not be foundâ, which means people were looking but couldnât find him, which means Varys didnât know either. (Or if he did know, he wasnât saying, again to stir shit.) The Tower of Joy was very out of the way.
But still, itâs possible that Varys does know about R+L=J, either from his spies back when or gathered knowledge since then. If so, heâs likely factored in the possible revelation of Jonâs parentage into his plans to bring Aegon to the throne. Whether Varys has false counter-information ready in case of a reveal, or if heâd simply be using a semi-truthful legal strategy (Aegon is older; even if Rhaegar married Lyanna it was bigamous and thus illegal; etc), or even if he doesnât know and finds out when the secret is made public (if itâs made public), it probably doesnât matter. Varys is very utilitarian: heâll do what he must, whatever it may be.
(btw I donât mind if someone asks the same question of all the meta people on tumblr, presumably in hopes of getting different answers, but personally I prefer if itâs proceeded with a statement that thatâs what youâre doing. It makes me feel less like a meta monkey dancing for your entertainment, thanks.)











