AELLIA, High Priestess of Aedren.
She is one of the Trinitas Sanctum alongside Zhouguang and Elzrerr, but unlike Emperor Zhouguang whose title is passed down through blood, nor General Elzrerr who left his Godhood and became the Supreme Leader of his people, High Priestesses are the direct representation of Goddess Temperantia, chosen by the "Spiritus Sancti" or the Holy Spirit of Temperantia herself.
When a High Priestess dies, the Spiritus Sancti will leave its dead vessel and find a new body it deems most noble and pure, in the form of a newborn girl. High Priestess is the ruler of Aedren, a mountainous region northernmost of Paradiso Continent which has unparalleled political, philosophical, religious, and scientific advancement. She rules alongside The Five Cardinals.