Here is more evidence of Eulalia’s great idea about Aegon being Illyrio’s son. It really clicked with me when you proposed all the relationships, so I did some research to support her crackpot theory.
All references are from the American hardback version of ADWD.
First thing to acknowledge is that Illryio is quite fond of Aegon, almost like how a father loves a son. Pg. 81,Tyrion: “Don’t trust sellswords, yadda yadda.” Illyrio: “Griff is different he has a son he dotes on. Young Griff, the boy is called. There was never a nobler lad.” Griff dotes or Illyrio actually dotes on…
This passage in particular illustrates Illyrion’s feelings. Pg. 113, Illyrio, “There is a gift for the boy in one of the chests. Some candied ginger. He was always fond of it” Illyrio sounded oddly sad. “I thought I might continue on to Ghoyan Drohe with you. A farewell feast before you start downriver…” So here we have Illyrio longing to see his son before the kid sets off on his defining adventure. And, who gives candied ginger to a pawn in the game of thrones? I mean, c’mon, candied ginger!
Pg. 20, the statue in Illryio’s manse: A naked boy stood on the water, poised to duel with a bravo’s blade in hand. He was lithe and handsome, no older than sixteen, with straight blond hair that brushed his shoulders. This just shows that either Illyrio had blond hair or the statue was made after Aegon, since a father misses his son. We don’t know when the statue was crafted, but it depicts a boy the same age as Aegon. Pg. 79 Now recall Serra, whom Illyrio picked up in a Lysene pillow house, brought her back to Pentos, and fell in love with her. Lysene have blond hair so Serra could safely blend in there with her dragon blood. If the statue really was made after Illyrio, it just goes to show both Aegon’s parents have blond hair, blond hair from Illyrio plus blond from Serra if she is a Blackfyre not Lys. Or Illyrio is the Blackfyre…
Here is the connection to Varys: Varys is Serra’s brother, both of whom are decedent from Aegon the Unworthy or Daemon Blackfyre. The text on pg. 78 is a bit confusing to me, but I guess Maelys the Monstrous was a son of Daemon who rebelled against Aegon the Unworthy. Illyrio told Tyrion on why the Goldon Company will ally with Dany even after they rebelled against the Targs, “Black or Red, a dragon is still a dragon. When Maelys the Montstrous died upon the Stepstones, it was the end of the male line of House Blackfyre.” Well, Varys has a dragon name and is from Myr, which is pretty close to the Stepstones. Plus, Illryio smiled through his forked beard, meaning Varys is not quite male missing his family jewels and the bloodline actually continues through him and his sister. Illyrio is also lying about the bloodline ending, because of Aegon. So, if Varys is Aegon’s uncle and Illyrio’ son, it could explain why those two rascals are so close.
Tyrion asks why Illyrio wants to help Dany reclaim the Iron Throne for the Targs, on pg. 74 Illyrio states, “As you will. The Beggar King swore that I should be master of coin and a lordly lord as well. Once he wore his golden crown, I should have my choice of castles…even Casterly Rock, if I desired….why would I want the Rock…Master of Coin, though…” Master of coin or to sit on the king’s council and guide his son as the king of the realm and restore the dragons to the throne with Varys’s help?
This evidence is a little disjointed, because of my lack of understanding of the Blackfyre history, and especially the timeline implications. So it’d be much appreciated if anyone could remark on that. Regardless of the Blackfyre angle, I think Aegon is Illyrio’s kid.
One last point. Many people think that there is a connection between Illyrio, Varys, and the Faceless Men. We also think TFM are trying to sneak into Oldtowne to find a book on how to kill dragons. So why would they want to both kill the dragons and help sit Dany on the throne? Perhaps Varys and Illyrio want to kill the dragons once they take the realm with her help so they don’t have to share the throne with a Targ. We know Varys is a master player and always thinking many steps ahead. Or maybe there is something in that book that will help them control the dragons. Or maybe they are not even connected to TFM in the first place…