Westeros Explained on Instagram: "Bittersteel — born Aegor Rivers, a Great Bastard of Aegon IV — was a man forged entirely out of grievance, pride, and war. Son of Aemon Rivers and Melissa Blackwood, he inherited his mother’s Blackwood fire and his father’s brutal will. Where Bloodraven ruled through whispers and ravens, Bittersteel chose steel and banners. From the moment the realm was poisoned by Aegon IV’s legitimization of his bastards, Bittersteel became the sword of House Blackfyre. He cro