Technically, it's wrong, since the name Ivalice means something different in every game of Ivalice Alliance.
Ivalice is a region in FFXII, a kingdom in Tactics, a citiy in Tactics Advance.
Also what I understood from FFXIV, and maybe Im wrong, is that Ivalice is part of the near estern region, where dalmasca is, thus dalmasca is located inside Ivalice, which is part of the eastern continent.
