I have a theory to who this person is
I think they're a descendent of Zephyra. It would make sense to introduce one of her descendents since we have one of Solaira's descendent on the island and with Skywind trapped, it would be a fun way to introduce more Grimorian characters and the Grimorian side of history.
Because the descendents of Zephyra and Solaira would get wildly different stories of what went down with Skywind being the only person/unicorn to know what actually happened. So it would give us a way to see how Zephyra's descendents and kingdom would tell the story. And it would be very interesting if the two descendents of the two people who were some of the first people and rulers of the two islands to interact, especially with vastly different versions of what went down.
Also, I think it'd be even more interesting if Skywind ended up bonding with a descendent of Zephyra. Because according to Valentina, Grimoria and Unicorn Island used to be one island before Solaira split it in half. And with Skywind bonding with a descendent of Zephyra and then the descendents of Zephyra and Solaira becoming friends, it could symbolise the two islands uniting like how it was originally supposed to be.
