Emperor Arthur Mansel, also known as "The Gallant Light" was the founder of the Holy Arcadian Empire. Emperor Arthur was known for his godlike Holy magics which knew no limits. Shocking the greatest wizards by mastering the hardest of Holy magics at the age of 9 and defeating the most skilled of warriors in swordsmanship and horseback riding at the same time.
During the stalemate of the eight nations, Emperor Arthur retreated to the faraway grasslands lands of Arcadia to train, later surpassing his previous capabilities. He eventually transcended human capabilities and became somewhat like a god and was later confronted by the Immortal Lucius, whom gifted him with his Regalia. He later challenged Lucius to a duel, to which he was easily defeated and was capable of landing only one successful hit against him with the use of his Regalia. After his defeat, Lucius commended him for being able to unleash Aurelea's true power but told him he would die after 8 days. It was from here that he immediately rushed back to his kingdom and within those 8 days, he had managed to pass down as much knowledge as he could as well as issue orders for the creation of the great wall that still surrounds Arcadia even today.
He later vanished, never to return leaving his son Arthur II heir to the throne. Until today, his strategies and tactics in war as well as Holy magics are still being taught today in Solaria. And even today, nobody has still found his corpse or final resting place. But legends say that wherever he rests, the Regalia Aurelea must be with him, keeping him pure as well as waiting for it's next true master...