In “The Winds of Winter,” George Martin has revealed that Balon and Euron have two more brothers and one of them is Aeron Greyjoy. After killing his two brothers including Balon, Euron sought out to do the same and kill Aeron, as he sets his sights on the Iron Throne over at King’s Landing.
In the TV series, Euron plans to build ships and entice Daenerys Stormborn to hook up with him and they will take the Iron Throne together.
If in the HBO series, Ramsay Bolton, played by Iwan Rheon, is the most despised character of all, in the books, Euron Greyjoy is actually the worst.
During the BaltiCon, George Martin said that the chapter on Aeron Greyjoy will simply remind everyone that Ramsay Bolton is not the worst character yet.
In the chapter of “The Winds of Winter” he shared during the BaltiCon entitled “The Forsaken,” Aeron Greyjoy has been revealed to have been locked away in a dungeon by his brother Euron, who has repeatedly abused him over the years.
In the same chapter, Aeron Greyjoy actually ended up being tied to the prows of Euron Greyjoy’s flagship as his brother sails to King’s Landing and lay his claim to the Iron Throne.
In “Game of Thrones” Season 6, Euron Greyjoy is being played by Pilou Asbaek, and it is not clear if the showrunners will also be introducing Aeron Greyjoy in future seasons of “Game of Thrones.”