|Born||In +/- 284 AL|
A Storm of Swords
After the escape of Jaime Lannister, Lord Rickard promises Alys's hand to whomever would bring him the Kingslayer, murderer of his two sons.
A Dance with Dragons
Following Melisandre's prophecy to Jon Snow of a girl on a dying horse riding to the wall, Alys Karstark arrives at the wall to speak with Jon after fleeing her uncle Cregan. Cregan had tried to force her into a marriage with him to make him Lord of Karhold instead of castellan. To avoid this, she is married by Melisandre to Sigorn, Magnar of Thenn. When Cregan arrives at the wall to claim Alys, Cregan is thrown into an ice cell by Jon Snow.