Sack of Ashemark

The Sack of Ashemark is an event in the Battle of the Five Kings and part of Robb Stark's invasion of the Westerlands following the liberation of much of the Riverlands from Lannister occupation.

Prelude
The northern army led by Robb Stark invades the Westerlands, surprising the host led by Ser Stafford Lannister at Oxcross and annihilating it. With the bulk of the Lannister force stationed at Harrenhal and the remnants of Jaime Lannister's army already scattered, the Westerlands are largely defenseless.

Battle
Following the victory at Oxcross, the Northern army sacks Ashemark, seat of House Marbrand.

Aftermath
Following the sacking of Ashemark, Robb's army pushes deeper into the Westerlands, resulting in a new victory in the Battle of the Yellow Fork.

In the books
In the A Song of Ice and Fire novels it is mentioned that Ashemark is easily sacked by Robb's army, and the keep's castellan is killed. Lacking the necessary strength to capture Casterly Rock or Lannisport, the Northern army raids the Westerlands: Galbart Glover and Rickard Karstark raid along the coast, Maege Mormont captures thousands of livestock, and Greatjon Umber - who in the novels remains with Robb - captures the gold mines at Castamere, Nunn's Deep, and Pendric Hills.