"This letter, detailing our infantry movements was meant for Lord Damon of House Marbrand; it was sent to Lord Marlin of House Dormund!"
Tywin Lannister to his bannerman Amory Lorch[src]

House Dormund of Dormund Keep is a vassal house that holds fealty to House Stark of Winterfell.


Season 2

During the War of the Five Kings a letter detailing the infantry movements of House Lannister's forces was accidentally sent to Lord Marlin of House Dormund, instead of Lord Damon Marbrand, due to the illiteracy of Amory Lorch.[1]


In the books

No House Dormund, or Lord Marlin are mentioned at any point in the A Song of Ice and Fire novels. However, one of Tormund Giantsbane's sons was named Dormund, and was killed during Stannis Baratheon's assault on the wildling host.