|House Goodbrother of Downdelving|
|Seat || Downdelving|
|Region || Iron Islands|
|Overlord || House Goodbrother|
House Goodbrother of Downdelving is a cadet branch of House Goodbrother with Downdelving as their seat on the island of Great Wyk, located within the Iron Islands region of Westeros.
A Feast for Crows
Greydon Goodbrother is sent by his father Lord Gorold Goodbrother to inform their cousins at Downdelving, Crow Spike Keep and Corpse Lake of King Balon Greyjoy's death.