[Quick note: mine uses masculine pronouns. Please don't 'they' him, he doesn't like it.]
Morgyn was born as Rosalie de Lorraine, somewhere outside Mortain, France, with a twin brother Ezio. The two are fraternal twins, but they look so much alike with only minor differences between them, most think them identical. Morgyn often shortened the name to Rose, but it never felt right.
Some time after Ezio and Morgyn turned sixteen, the baron of the land they lived on, Jean Dussault, decided he wanted Morgyn's hand in marriage. He'd already had two wives before, and both had died under questionable circumstances, and Ezio decided they were running, instead. They were meant to study under a Sage named Aine in Magic Realm, and Morgyn was sent ahead first, and Ezio and their parents would follow later.
They never did.
It became obvious, eventually, that they weren't coming. Morgyn never did figure out the details of why, never thought to go back to France. Morgyn had no interest in being anywhere near Jean again, and maybe some part of the blond didn't want to know what happened. It was easier to ignore something when one didn't understand it, and Morgyn was more interested in moving on from Mortain, and never thinking of it again.
Instead, Morgyn focused on learning from Aine. In some sense, Aine became something of a parental figure for Morgyn, who, at the time, was still fairly young. Through Aine's guidance, Morgyn not only became more skilled at magic, but also began to better understand femininity, not only Morgyn's own, but the quality in general, and started to see it as something besides a weakness. At Aine's insistence the blond stop suppressing the inner woman, Morgyn spent this period of time trying very hard to be a woman, but inside, something always felt wrong.
Magic doesn't make money, though, at least, not until you're very good at it, and Morgyn needed an income. Morgyn was nice to the menfolk, some would say a little too nice but in that time period, there weren't many other choices. Morgyn gained a place to stay and food to eat, even eventually friends, friends that had lost everything and had no other choice the same as Morgyn did.
The more Morgyn lost, little pieces here and there, friends that found better lives, other friends that just happened to be in the wrong place at the wrong time, the colder and more closed off Morgyn became. Emotions became weaknesses, things that readily turned into obstacles and most often had no logical reasoning behind them, that made it hard for Morgyn to function and think.
Like a faucet, Morgyn turned it all off, relying on logic and reasoning instead, on the knowledge that Morgyn couldn't just stop because there was always something else to do. There was no sense in being upset. In a world like the one Morgyn lived in, you had to learn to take care of yourself, because no one else would. Some see it as a childishness that was never outgrown, but it is a way of survival, and being selfish kept Morgyn alive. Morals are just pretty little excuses humans come up with to justify themselves, but those were discarded too, for Morgyn doesn't need justification; Morgyn just needs to survive.
Morgyn was always fairly popular, charmed quite a few aristocrats and lords over the years, and income was no longer a problem. Lavish gifts were common, almost always sold for the money as soon as Morgyn could get away with it. In honour of Aine, Morgyn chose a Celtic name and started to go by Morgyn, with a letter changed because quite frankly, Morgyn's an extra bitch sometimes.
Then, one day, some ten twelve years later, Ezio just showed up out of nowhere in Magic Realm, and with a Dussault right behind him, no less. Morgyn wasn't thrilled at all, but it wasn't as if Morgyn didn't suspect Ezio's absence had something to do with the Dussaults. Morgyn would have to be truly stupid to believe as such. Ezio didn't ask questions about anything. Actually, he was so much quieter and jumpier than Morgyn was used to, it was almost heartbreaking. Logic, of course, kicked in and said, of course he is. Jean probably terrified him half to death. Oh, but how true those thoughts were, and Morgyn hated how true. Morgyn had a new purpose; only Morgyn could take care of Ezio. Only Morgyn understood Ezio, and like hell was anyone getting to him again.
Matheo, the Dussault, turned out to be a helpful ally. Ezio responded well to him, and Morgyn begrudgingly eventually began to trust him with the frazzled mess Ezio was. Though it pains Morgyn to admit, the blond learned a good deal about how Ezio had changed and who he'd become, and how to best help him, from Matheo, who later dropped his last name and started going by Drake. The three became a weird family unit, but a family all the same. Ezio never did like Aine, and at the time, Morgyn didn't think much of it. In hindsight, he was probably right not to, but there are secrets only Aine knows, even now.
Aine was gone one day, and the All chose Morgyn. Frankly, Morgyn doesn't understand why, never really wanted it because the blond didn't want to end up tied down that way, but it was what it was. No one can argue with the All. No one has seen Aine since, and Morgyn took the loss somewhat hard. Through L. and Ezio's guidance, Morgyn later came to realize, and accept, that the blond was never quite a woman, but never quite a man, either. Morgyn was somewhere between. Something that wasn't either. And still both. It's a complicated mess, and Morgyn rarely tries putting it to words, because it doesn't matter. Only Morgyn needs to understand it.
As Ezio discovered human medicinal advancements, and progress in technology, Morgyn got interested in that biology thing. Understanding more about life and how it works offered the unique opportunity to find some kind of answer for Ezio. Morgyn later underwent top surgery and began HRT, putting the body more firmly somewhere in the middle between genders, but it's still not fully correct and Morgyn's still not entirely happy with it, and still sometimes experiences gender dysphoria and feels inexplicably gross for no real reason. Ezio has almost never used pronouns for Morgyn, and that coupled with the French language being gender-heavy makes Morgyn shy away from singular they. He is much more preferred.
Ezio and Drake have recently moved into an apartment of their own-Morgyn chose not to follow them, the blond's outgoing nature instead drawing Morgyn to the Casa di Colori, where one can meet all kinds of other people all the time. The Casa is also not far from Ezio. Morgyn later enrolled in the University of Britechester for biology. Most likely, all the science degrees are on Morgyn's to do list. Morgyn says things about how the blond refused to enrol with Foxbury because it was too modern, but this is a lie. No one understands Ezio like Morgyn does, and simply, Morgyn doesn't want to be too far from Ezio, and Britechester is where Ezio is getting his degree.
The goal, of course, maybe eventually, is will finally managing to find something that pays the bills and stop needing to be so friendly with the menfolk.