From A Wiki of Ice and Fire - A Song of Ice and Fire & Game of Thrones
|Book(s)|| A Clash of Kings (appears)|
A Feast for Crows (mentioned)
A Clash of Kings
Palla plays lord of the crossing with the Frey wards, Big Walder and Little Walder. When Winterfell is captured by the ironborn, she is raped by Drennan and another ironman. Theon Greyjoy has the two rapists whipped for raping her.