Explicitly, we only see "tempering" associated with the six Primals(and King Moggle Mog XII).
However, we see thrall-like behavior a few other times outside of this context.
1. Nael van Darnus seems very much enthralled by Bahamut, yet it is never stated as "tempering." But that is probably because Bahamut actually being inside Dalamud was the big plot-twist of 1.0. So was it tempering? Maybe, maybe not.
2. An argument could be made for the Warriors of Light being thralls of Hydaelyn. While much of their free will remains intact, the player characters never hesitate to serve Hydaelyn regardless of dangers to themselves. In the very first encounter with the Primal Ifrit, he attempts to temper the player character and his/her companion, only to realize that we have been "claimed by Another."
3. Wildlings. While it's never said outright in game, those Wildlings claimed by the Elementals exhibit the hallmark signs of tempering. Empty husks who forget their old lives, blindly serving the Elementals whim.
4. Dragonkin also exert something akin to tempering over Man. According to Ishgardian lore, looking into a dragon's eyes or touching its scales will break your mind and leave it open to the dragon's influence. We see possible evidence of this with some of the Dravanian side missions and even in the birth story of Ishgard/Dragoons. When Thordan takes up lance against Nidhogg, the dragon king bewitches Thordan's men and they cast him into the chasm.
However, we see thrall-like behavior a few other times outside of this context.
1. Nael van Darnus seems very much enthralled by Bahamut, yet it is never stated as "tempering." But that is probably because Bahamut actually being inside Dalamud was the big plot-twist of 1.0. So was it tempering? Maybe, maybe not.
2. An argument could be made for the Warriors of Light being thralls of Hydaelyn. While much of their free will remains intact, the player characters never hesitate to serve Hydaelyn regardless of dangers to themselves. In the very first encounter with the Primal Ifrit, he attempts to temper the player character and his/her companion, only to realize that we have been "claimed by Another."
3. Wildlings. While it's never said outright in game, those Wildlings claimed by the Elementals exhibit the hallmark signs of tempering. Empty husks who forget their old lives, blindly serving the Elementals whim.
4. Dragonkin also exert something akin to tempering over Man. According to Ishgardian lore, looking into a dragon's eyes or touching its scales will break your mind and leave it open to the dragon's influence. We see possible evidence of this with some of the Dravanian side missions and even in the birth story of Ishgard/Dragoons. When Thordan takes up lance against Nidhogg, the dragon king bewitches Thordan's men and they cast him into the chasm.
