Devan Seaworth is the fifth son of Davos Seaworth, but as all of his elder brothers are dead, killed in the Battle of the Blackwater, he is the eldest. He is squire to King Stannis Baratheon and was at the battle himself, and was rescued from capture by Sallador Saan along with the king. He is being taught to read by the Maester at Dragonstone and he has converted to the worship of the Lord of Light. He goes with Stannis to the Wall, but is left with Melisandre when Stannis goes off to take Deepwood Motte.