Eyvind Braggart is one of Queen Gunnhild's brothers, and is a character in Egil's Saga. Queen Gunnhild convinces Eyvind and his other brother to attempt to kill Egil Skallagrimson but they are unsuccessful. He is known for drunkenly murdering one of Egil's men and is banished from Norway as a consequence. He is then hired by King Harald Gormsson, of Denmark to defend its coastlines. He attempts to ambush Egil Skallagrimson while raiding and pillaging with his Viking crew, but is compromised by an ally of Egil's, Aki the Wealthy.
References
Eyvind Braggart Wikipedia(Text) CC BY-SA