Complex sentence: The captured wildling Osha (Natalia Tena), now a servant of the Starks, is harassed by Theon Greyjoy (Alfie Allen) who warns her that if she had been arrested in his homeland the Iron Islands she would have suffered a worse fate.
Split into simpler sentences: The captured wildling Osha (Natalia Tena), now a servant of the Starks, is harassed by Theon Greyjoy (Alfie Allen). He warns her that if she had been arrested in his homeland the Iron Islands she would have suffered a worse fate.