Atlantia is the daughter of Iasius and Clytemnestra, the Arcadian king and queen. Far from the typical princess, Atlantia's interests include military history and gamesmanship. Before she left her homeland, she could often be seen practising her skill with the cloudbow in the palace guard training grounds.
Atlantia left Arcadia, citing her failure to feel any sense of belonging there. She came to the Halls of Combat seeking tutelage to further her mastery of the bow and arrow, but instead experienced a vision that predicted her role in gathering Champions to defend those who had been wronged, one that eventually came to fruition.
In 462 AF, fifteen years after Lord Makarta's death, Atlantia succeeded the former head of the Ivory Mark as its new registrar, having triumphed in retrieving Makarta's ivory helm from the hands of the Quisalis assassins in New Thera. Situtated outside the Halls of Combat, within an ancient battlefield on the Sangre Plains, Atlantia serves to induct new members who wish to uphold the Mark's noble cause of avenging those who are unable to do it themselves.
Atlantia commissioned the construction of the Ivory Tower in the Sangre to both honour Lord Makarta and provide a place wherein Champions may rest, work, and train. On the 14th of Aeguary, 473 AF, the Tower was opened to the public.
Her noble dedication to battle is captured in the Atlantia battle figurine.