What this means is that the influence that FFXII has over FFXIV is WAY bigger than the most would expect. These names are, in fact, part of Ivalice's mythology. They are 3 of the scions of light, a counterpart to the Scions of darkness, which are the Espers you can summon in FFXII. So there is a 1/1 parallel between every Ascian and every Esper, except for two. The first is the thirteenth, the one who never committed rebellion but was bound because the Gods were afraid of its power: Zodiark.