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  ====The Riverlands====
  At her father's castle of Riverrun, Robb's mother Catelyn Stark releases the captive Jaime Lannister, Joffrey's uncle (and, secretly, father) in order to secure the release of Catelyn's daughters, Sansa and Arya, who Catelyn believes are held hostage by the Lannisters in the capital city, King's Landing. Jaime is sent south, escorted by Brienne of Tarth. Robb's army returns to Riverrun, having vanquished the Lannister armies in the west, and Robb reveals that he has married Jeyne Westerling, violating his promise to be wed to a daughter of House Frey. These actions alienate and infuriate some of Robb's allies, weakening his military position.
  Jaime and Brienne are captured by mercenaries working for Roose Bolton, who is nominally an ally of Robb's but is secretly plotting to undermine him. The mercenary captain Vargo Hoat has Jaime's sword hand cut off. Brienne is thrown into a bear pit by Hoat, and Jaime risks his own life to rescue her. Bolton releases Jaime and Brienne and they travel to King's Landing.
  Arya Stark, traveling in the Riverlands, is taken in by the "Brotherhood Without Banners": a band that defends the smallfolk of the Riverlands, led by Lord Beric Dondarrion and the red priest Thoros of Myr. The group encounters Sandor "The Hound" Clegane, Joffrey's former bodyguard, and offers him trial by combat for his crimes. The Hound kills Beric, but Thoros resurrects him with the power of the fire god R'hllor. The Hound kidnaps Arya and flees with her.
  In order to return north to defend the region against Greyjoy attacks, Robb needs the support of the Freys. The Freys propose a wedding between Catelyn's brother Edmure Tully, now lord of the Riverlands, and one of Lord Walder Frey's daughters, to compensate for Robb breaking his marriage agreement. At the wedding celebration, the Boltons and Freys turn on the Starks, massacring Robb's forces. Robb is murdered by Roose Bolton, while Catelyn's throat is cut and her body thrown into the river; Edmure is kept alive as a hostage. These events become known as the Red Wedding.
  Arya and the Hound witness the Red Wedding and escape, but soon after, the Hound is wounded in a skirmish, and Arya abandons him. She takes a ship to the Free City of Braavos, where the assassin Jaqen H'ghar had told her she could find him.
  In the epilogue, a re-animated but decayed and mutilated Catelyn is leading the Brotherhood Without Banners, and she oversees the lynching of two of the Freys who were present at the Red Wedding.