The Kingdom of Asturia enjoys a long history and a prosperity difficult to find anywhere else in Gaea. This is due to its mild climate, fertile soil brought by rivers, and commerce based upon ocean shipping. Since the territory benefits from its geography, many have desired to govern this territory. As a result, nations have risen from and returned to ashes from time to time.
When the Kingdom of Asturia came into being, it ended this series of wars. but obviously the path was not an easy one. There were twelve knights weo served the first King of Asturia. This was the beginning of the Knights of Caeli, a tradition that continues to this day. While it is doubtful that the King of Asturia was any more just that kings of other nations, these Knights foght to lay a foundation for their kingdom. They were entrusted with the legendary Guymelef, Scherazade, as a reward for their loyalty to the kingdom.
However, over generations, the rank originally designated for Knights Caeli, who fight on the frontlines against enemies, became an honorary position. As a result of this, it is said that more and more members, who were too old to fight in battle, or even sometimes ones who never knew how to fight at all, came to hold this once-exhalted rank over time.
So, from this perspective, it was an exceptional achievement for a young man like Allen to obtain the title of Knight Caeli. But, in this time of turmoil with Zaibach, it was truly fortunate for Asturia to have Allen on their side. And, although the tactics have changed over time, the Knights Caeli became once again what they were originally intended to be. However, there is no way for us to fathom the level of interference by the Dragon tribe's intentions in this matter...