Euron Greyjoy

Lord Euron Greyjoy, nicknamed Euron Crow's Eye, is a member of House Greyjoy. He is the Master of Whisperers to the Iron Throne, and a member of the Small Council, as well as captain of the Silence.

Background
Euron Greyjoy joins Robert's rebellion against House Targaryen, and raids the Reach late in the war. Afterwards, King Robert gives the title Master of Whisperers, and Euron joins the Small Council.

"A Game of Thrones" (298)
Lord Eddard Stark receives a letter from Jon Arryn claiming that Robert and his Small Council - including Euron - were participants in Queen Cersei's death. Afterwards, Arryn himself dies mysteriously and Eddard becomes the new Hand.