AKOTSK: The Dreambreaker (Matarys-Son of Baelor SI)

Born as the second son of Baelor Breakspear, Matarys Targaryen would hold the fate of the Targaryen family in his hands. Born to the Greatest King who never was, what would he do to save his father from his dreadful fate? Anything. Even kinslaying. — Description from novelcodex.org