House Goodbrother

House Goodbrother is a vassal house from the Iron Islands that holds fealty to House Greyjoy. Their seat is Hammerhorn, a castle located on the Hardstone Hills of the island of Great Wyk, the largest of the Iron Isles.

In the books
In the A Song of Ice and Fire novels, House Goodbrother is one of the most powerful houses from Great Wyk. Their keep of Hammerhorn is inland, in the Hardstone Hills, their wealth not coming from the sea but from their mines. Their blazon is a gold-banded black warhorn on red. Their current lord is Gorold Goodbrother.

House Goodbrother also has three cadet branches: House Goodbrother of Downdelving, House Goodbrother of Crow Spike Keep, and House Goodbrother of Corpse Lake.