Complex sentence: Ramsay Snow is the bastard son of Lord Roose Bolton, known as the Bastard of Bolton or the Bastard of the Dreadfort but insists on his legitimized status as the scion of the Dreadfort.
Split into simpler sentences: Ramsay Snow is the bastard son of Lord Roose Bolton. He is known as the Bastard of Bolton or the Bastard of the Dreadfort.