When Game of Thrones was still ongoing, fans flooded the internet with tons of theories that ranged from very plausible to downright absurd. 3 & 2) Jaime & Cersei LannisterThe idea of Jaime and Cersei being Targaryens instead of Lannisters sounds far-fetched, but it actually makes a lot of sense. 1) Tyrion LannisterTywin’s youngest son, Tyrion, is also someone believed to be a secret Targaryen, and the evidence fits him better than his siblings. There’s also the unfortunate birth pattern he shares with Daenerys and the confirmed secret Targaryen, Jon Snow, in that all their mothers died while giving birth to them. Having multiple secret Targaryens takes away from how special it is that Jon Snow is one.