Arthago was the firstborn of Queen Akorithi and the deceased King Camaron of Sentinel. Due to his poor health, his parents decided that he could not and would not sit on the throne of Sentinel. To eliminate the political feud that would naturally occur, they decided to make him disappear. As soon as he turned 15, he was taken to Castle Faalem, a ruined castle, and was left alone to die. Then King Camaron created a story that says that Arthago was kidnapped by an agent of the Underking. Recently, his fate was discovered by an agent of Uriel Septim VII.