Who said "I am my mother's son."?

This quote is attributed to Theon Greyjoy.

I am my mother's son. - Theon Greyjoy

"I am my mother's son."

Theon Greyjoy

Character in A Clash of Kings

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"Better to be a living dog than a dead lion."

"What is dead may never die"

"A broken man has nothing left to lose"

"The gods are cruel to make us want what we cannot have"