Elemental prince

Elemental princes are powerful elementals that exist at the top of the elemental hierarchy along with the Elemental Lords. They are unique, named beings with special abilities and great powers. Ragnaros' elemental princes, the "Fire Princes", battle constantly for dominance of his realm, while he is stuck in Azeroth. They also battle Therazane, creating volcanos in her realm of Deephome. They also create volcanos on the floor of the Abyssal Maw, and send noxious fumes into Al'Akir's realm of Skywall. Cloud Princes exist in Skywall.

Named princes

 * Az'Barin, a Prince of "the Gust".
 * Prince Sarsarun , a Prince of Air.
 * Prince Skaldrenox, a Prince of Fire.
 * Princess Tempestria, a Princess of Water.
 * Princess Theradras, a Princess of Earth.
 * Prince Thunderaan , a Prince of Air.

Speculation
It can be speculated that 'Elemental Princess' is an equal, or at least similar, rank.