It's definitely way up there on the tinfoil hat meter, haha. Some interesting circumstantial evidence there, although I always attributed relative Bolton secrecy as just that... relative secrecy. Martin (thankfully) doesn't go too deep into each house's history, and it can be (weakly) argued that Mormonts and Tarly's are major characters but we don't know too much about them either.

But yeah, that's a pretty wild theory, and Martin does seem like the type to attribute more weight to the sigil of the flayed man than just something Boltons do to their enemies.



So... when is Winds of Winter getting released again? Sigh.