they hand over Theon. Robb soon meets and falls in love with Talisa Maegyr, a foreign healer from Volantis. Stannis assaults King's Landing at the Battle of Blackwater Bay and is defeated when Tywin, joined by the armies of House Tyrell via a newly brokered alliance, arrives and stops the city from being sacked. While Robb travels to the Crag to negotiate a surrender, Jaime escapes and kills the son of Lord Rickard Karstark before he is recaptured. Catelyn stops Rickard from killing Jaime but discontent within the Stark army begins to grow. Additionally, despite his mother's protest, Robb breaks his engagement with the Freys and marries Talisa. As a result, the Freys abandon the Stark army. Season 3 Believing Jaime to be her only chance of seeing her daughters again, Catelyn frees him and commands Brienne of Tarth to bring him to King's Landing in exchange for Sansa. Furious, Robb has his mother imprisoned. He leads his army to capture Harrenhal, but finds that hundreds of his imprisoned bannermen have been slaughtered. Upon learning of the death of his grandfather, Lord Hoster Tully, Robb returns to Riverrun for the funeral. Robb's uncle and the new Lord of Riverrun, Edmure Tully, is scolded by Robb for previously disobeying a command when he attacked Ser Gregor Clegane's forces. While at Riverrun, Robb executes Rickard Karstark after he murders two teenage Lannister squires. As a result, the Karstarks abandon his army. In order to regain an alliance with the Freys and bolster his army, Robb arranges for the reluctant Edmure to marry one of Walder Frey's daughters. With the advisement of his mother, Robb prepares to invade Casterly Rock, the domain of House Lannister. At the Twins, Walder Frey provides guest right to Robb, his family and bannermen. The wedding commences but Walder betrays Robb in an event secretly orchestrated by Tywin, Walder, and Lord Roose Bolton. Talisa, pregnant with Robb's child, is stabbed in the stomach and killed. Robb's entire army (save for the Boltons and Freys), are murdered. Robb himself is shot with multiple crossbow bolts, taunted by Walder, and subsequently executed by Roose with a knife to the heart. Catelyn kills Walder's wife but she too is executed when her throat is slit. Robb's corpse is decapitated and his direwolf Grey Wind's head is sewn on in its place, and the corpse is then paraded around as the Stark