From A Wiki of Ice and Fire
Downdelving is the seat of House Goodbrother of Downdelving, a cadet branch of House Goodbrother. It is located on the island of Great Wyk.
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.
- ↑ A Feast for Crows, Chapter 1, The Prophet.