Glozelle

Glozelle was a Telmarine lord in the service of King Miraz, and he was also the general of the Telmarine army. During the Narnian Revolution Glozelle and fellow lord Sopespian plotted the death of their king just as their king had plotted the death of his brother, to become king in the first place. They planned to overthrow king Miraz and take over the kingdom themselves. After talking King Miraz into accepting the challenge to a duel with Peter Pevensie, Glozelle served as a Marshal of the Lists along with Sopespian for their king. During the Duel of Aslan's How, Glozelle betrayed Miraz by secretly stabbing (and killing) him, blaming it on a false move by Peter Pevensie, therefore allowing him to send his army charging at the Old Narnian Army. He is believed to have died during the ensuing Second Battle of Beruna.

Trivia

 * In the BBC film as well as in the book version of Prince Caspian, Glozelle does not appear until near the end, in which he and Sopespian conspire against Miraz and talk him into accepting Peter's challenge. In the BBC version, however, when Miraz falls he is wounded by Peter and Glozelle stabs him dead as revenge for an earlier insult he gave him. He then attacked Peter, only to be killed by him.
 * In the Disney film version, the greatest difference of Glozelle from the book version is that it is not he, but rather Sopespian, who kills Miraz. Also, in this version, Glozelle definitely survives the Battle of Beruna and he is seen in the aftermath, being the first to agree to return to the South Sea from which all Telmarines originate. He is told by Aslan that he will live a good life there.