Stafford Lannister

"Using some vile sorcery, your brother fell on Stafford Lannister with an army of wolves. Thousands of good men were butchered."

- Ser Lancel Lannister

Stafford Lannister is an unseen character mentioned in the second season. Ser Stafford Lannister commands the new House Lannister army that is being raised in the Westerlands to replace Jaime Lannister's army which was destroyed in the Battle of the Whispering Wood. Stafford's army is defeated during the Battle of Oxcross, in which Stafford himself is killed.

Season 2
Robb Stark's army sneaks through the mountains bordering the Westerlands, and ambushes Stafford's army at night in their own camp at Oxcross. Stafford's army of raw recruits is massacred, and Stafford himself is killed. After the Lannister defeat at the Battle of Oxcross, King Joffrey Baratheon torments Sansa Stark before the royal court; Ser Lancel Lannister reports that Robb Stark employed sorcery and wolves to massacre the Lannister army and that after the battle, the Northmen feasted on the flesh of the slain.

In the books
In the A Song of Ice and Fire novels, Ser Stafford Lannister is the brother of Joanna Lannister. Like his sister, he is a member of the line that descends from Lord Tytos Lannister' younger brother. Thus, both Joanna and Stafford are cousins of Tywin and the main branch of the family. Stafford dies in the Battle of Oxcross, killed by Lord Rickard Karstark. Both Jaime Lannister and Brynden Tully consider him a poor commander as he didn't scout the area believing Robb Stark was far away. Robb Stark had been led by Grey Wind along a goat path and had thus bypasses fortified positions in order to attack undetected.