Clues and Foreshadowing That Point to Tyrion Being a Targaryen

SPOILERS have been unshackled in the bowels of Meereen so unless you're caught up on Game of Thrones and all of the Targaryen tinfoil they have possibly packed in, run for your lives!  
After we watched him tell a story to Dany’s dragons, a popular fan theory that proclaims Tyrion a Targaryen came roaring back to life. Tyrion is intelligent and a big drinker. That’s what he does. Drinks and knows things. He also tries to get non-drinkers to play drinking games. With Daenerys out of the city and in the hands of the Dothraki, Tyrion suggests that her two dragons be released as extra fiery muscle against potential traitors and attacks at Meereen. He tells Varys, Missandei, and Greyworm a few facts about dragons. But saying you know about dragons is one thing. Walking right up to two of them and touching them is quite another. And it’s a Targaryen thing to do.  
Season five’s storyline put the Imp in Mereen with Daenerys and fired up the Tyrion Lannister theories. This union could very well be the beginning of the Three Dragon Riders prophecy. There was lots of foreshadowing about Tyrion’s connection to dragons, thus the Targaryen bloodline. 
On the way, Drogon flies over Ser Jorah and Tyrion. Tyrion is mesmerized not only because there haven’t been dragons in Westeros for over 200 years, but also because he has been obsessed with them since he was a child. A red priest also saw a vision of Tyrion casting a large snarling shadow. And we know what that could mean… is Tyrion Lannister a Targaryen, or at least half Targ?  
Considering how much his father Tywin hated his guts, Tyrion could certainly be the offspring of Joanna Lannister and Aerys Targaryen, the Mad King and Daenerys’s father. So is Tyrion Dany’s brother? The fact that Tywin goes out of his way to cruelly berate Tyrion and thwart him at every turn may be one of the largest hints that the former Hand of Aerys’s knew what was up and would rather die than put his lands in Targaryen hands. This is why he won’t give Tyrion Casterly Rock even though Jaime cannot inherit it.  
Let’s drink in some "Tyrion Lannister is really a Targaryen" theories and see if any of them hold water… or wine. 

  • Tyrion’s Father Was Aerys Targaryen

    Tyrion’s Father Was Aerys Targaryen
    Photo: HBO
    One of the most popular (and equally hated) theories out there is that Tyrion is the love or rape child of Aerys and Lady Joanna Lannister. Aerys had a thing for Joanna, Tywin’s wife and cousin, maybe even slept with her before she was married to Tywin. The scandalous rumor has been that Aerys bedded Joanna on her wedding night to Tywin. And she continued on with the affair with Tyrion being the result. Tywin could never know for sure if Tyrion was his, so why would he keep the Imp alive even after, as Tywin sees it, Tyrion killed his mother in childbirth? To save face, possibly, and from the gnawing notion that Tyrion may be his. And at the very least, Tyrion is still part Joanna. 
  • Tyrion Is Definitely Tywin Lannister’s Child, Jaime and Cersei Are Not

    Tyrion Is Definitely Tywin Lannister’s Child, Jaime and Cersei Are Not
    Photo: HBO
    Many fans super-white-hot hate the theory that Tyrion is a Targ because they believe this is not indicative of George R.R. Martin’s writing. It’s too “schmaltzy” and obvy for them. When he shoots Tywin on the john, Tyrion tells him, “I am your son. I have always been your son.” And this is what boils Tywin’s leather. He hates Tyrion because he’s not tall and evil. He probably also envys Tyrion’s wit and charm, as he’s bereft of both. Plus,Tyrion killed his beloved Joanna when she gave birth to him.  
    Another reason Tywin hates Tyrion so much, he knows that Jaime and Cersei ARE the children of Aerys and Joanna. Wuuuuuuut?!! Yep, there’s a theory out there that THIS is the reason that Tywin doubles down on his hate for Tyrion. The golden-haired kids belong to his wife and the Mad King (which totally explains Joffrey). Tywin has made himself believe the reverse over the years with Tyrion being constantly wounded by his insults and rejection. 
  • Tyrion Is One of the Three Dragon Riders

    Tyrion Is One of the Three Dragon Riders
    Photo: HBO
    Let’s assume that his way with dragons is no accident, and Rhaegal and Viserion know he can be trusted. In fact, Tyrion has an instant connection with them. Tyrion may be one of the prophesied dragon riders because he’s a Targaryen and that’s what they do. Drink and ride dragons. 
    Maybe his half-Lannister (Joanna was Tywin’s cousin and a Lannister), half-Targ blood is part of the final ingredients to help restore the rightful heir to the throne (whoever that is) and fight the White Walker horde, all while riding upon Viserion’s back to get it done. Plus, it’ll be cool to see Tyrion chortling with glee as he glides over Westeros and The Wall. 
  • Tyrion, Jaime, AND Cersei Are the Mad King’s Kids

    Tyrion, Jaime, AND Cersei Are the Mad King’s Kids
    Video: YouTube
    Maybe Tywin was a cuckold three times and that’s why he was no fun at parties. Despite knowing that Jaime and Cersei aren’t his and are hooking up, Tywin embraces them as they are beautiful and worthy of being claimed as his own. Tyrion kills Joanna in childbirth as Tywin sees it, and his appearance is an embarrassment to Tywin. Not convinced? Watch the video from Rawrist. 
  • Dreams and Visions

    Dreams and Visions
    Video: YouTube

    Besides setting Dany’s two dragons free and associating Tyrion with the dragons in several places (one of the season five main show posters, for example), Tyrion is told by the red priest Moqorro in A Dance of Dragons, “Dragons old and young, true and false, bright and dark. And you. A small man with a big shadow, snarling in the midst of it all.” Unless there’s something GRRM knows about dragons, they are destined to be ridden and controlled by Targaryens. And this foretelling is yet another move in the direction of Tyrion being one of them.
    There’s also Tyrion’s childhood dreams of dragons. He always wished for one. Even for a small one like himself. Rhaegal and Viserion seemed to listen intently to the story, but they were also pretty stoked about being unshackled. 

  • The Connection Between the Targaryens and the Lord of Light

    The Connection Between the Targaryens and the Lord of Light
    Photo: HBO
    The show certainly teased the Targ connection with a scene in Essos as pointed out by The Sixth Sigma. Tyrion is traveling incognito with Varys to meet with Daenerys in Meereen. He’s watching a Red Priestess talk about Daenerys being the savior of the people, sent by the Lord of Light. As Tyrion sips his wine, he quips, “We’re going to meet the savior. You should have told me. Who doesn’t want to meet the savior?” The Red Priestess then turns from the crowd and zeros in on Tyrion. What was that all about? 
    And then the show hits us over the head with the connection when Melisandre raised Jon from the dead - Jon probably being a Targaryen as well.