Gloucester is a kind and honourable man, but he is also gullible and easily deceived. Edmund, who is jealous of his brother, manipulates Gloucester into believing that Edgar is plotting against him. As a result, Gloucester banishes Edgar from the kingdom.
Gloucester later discovers the truth about Edmund, but it is too late. Edmund has already betrayed King Lear and caused the deaths of many innocent people. Gloucester is heartbroken by Edmund's treachery, and he eventually dies of grief.
Gloucester is a tragic character who is ultimately destroyed by his own kindness and trust. He is a reminder that even the best people can be deceived by those they love.