User blog comment:JuliusJoseph/The he Story Of Rhindon. and The Knighting of The Kings/@comment-1460951-20090729161600

I think that just Like Peter, Caspian was given the title because Aslan saved the kingdom from a tyrant (Jadis/Miraz) and put him in his rightful place as king. Even though Aslan himself was the ruler of Narnia he choose Peter to rule in his stead.I would guess and say that the title of "Knight of the Most Noble Order of the Lion" was Similar to King Arthur being named Defender of the Relm of Camelot.