Avalon

Sir Avalon, the Guardian of Oaths. 

More specifically, Avalon is the mediator for Those Who Swore A Code of Chivalry, and help guide passing souls who kept their Oaths.
These mostly consists of Knights and Warriors of course, but really any of those who swore an Oath on their lives/souls will be greeted by him after their End.
There, he judges them & determines their Fate based on a few things, including their Soul, their Faith, the Oath they took, and whether they stayed true to their word or not. These fates range from reincarnation, eternal rest, damnation, and, very rarely, afterlife. 

(may fill in more information later!)