Zeliseth - This male centaur used to be a female human Amazonian warrior named Astra. Like so many other Astras she'd been captured by the dragon of the Southern Caverns, but unlike so many others Jarlath 2's group was able to coax the dragon into letting her go with them.
However, due to the dragon's rather perverse sense of humor (which in the end got him killed for the insult) this Astra got changed into one of the fey folk (male). Then due to her new nature proceeded through the still rather murky means of Feydom she somehow fell permanently in love with a transformed Fred (now a centauress named Frieda).
Through a grant by one of the Fey royals, a change was managed to where the male fey was now a male centaur. Long story, don't ask . . .
Threw in with Jarlath's group in order to aid them AND to get a chance to win Frieda's hand. If he fails, then he shall literally die . . .