At the beginning of the series Robb is aged 16 years. He has a direwolf called Grey Wind. He remained at Winterfell when his father went to King’s Landing to be Hand of the King to Robert Baratheon. After Robert Baratheon’s death and his father’s arrest, Robb called out the Stark bannermen. His success in battle led to his being named King in the North and ‘the young wolf’.
Robb made an agreement with Walder Frey to marry one of his daughters in return for his army being able to cross the Trident. After learning that Winterfell had been taken by Theon Greyjoy he agrees to let Ramsay Bolton retake the castle.
Robb fell in love with Talisa Maegyr and despite being warned not to break the agreement with Walder Frey he secretly married her.
Successive victories had led to Robb holding many prisoners including Jaime Lannister. Jaime escaped after killing Torrhen Karstark. When Jaime was recaptured Lord Rickard Karstark wanted to kill him in revenge for the death of his son but Robb refused permission. Robb was furious when he found out that his mother had freed Jaime and sent him with Brienne of Tarth to King’s Landing in exchange for her daughters.
The relationship between Robb and Rickard Karstark continued to deteriorate with the older man losing faith in the young king. After Rickard killed Willem and Martyn Lannister Robb executed him.
After attending the funeral of Lord Hoster Tully at Riverrun, Robb and his army make their way to the Twins where Walder Frey has agreed to a marriage between Edmure Tully and one of his daughters to honour the agreement made by Robb Stark.
Towards the end of the wedding celebrations Catelyn Stark noticed that Roose Bolton was wearing chain mail under his clothing. She called out to Robb but it was too late, Talisa had been stabbed in the stomach and lay dying comforted by Robb who was shot by a crossbow then stabbed in the heart by Roose Bolton with the words “the Lannisters send their regards.” Catelyn Stark was also killed at the event known as the Red Wedding.
Robb Stark is played by actor Richard Madden.