Gower's Ring of Protection
This ring can reduce damage from backstabs. A faint headless and legless body appears on the back. Gower's Ring is decidedly the heaviest ring, since it adds 10 points of weight, which can drastically lower overall Agility.
Located in the foggy woods near the Ruined Forked Road. Veer to the right until a body is found. Gower's Ring of Protection can only be found on NG+ or with a Bonfire Ascetic.