Morgan was born Morgan Berrin, daughter of Lillith Jenner and Shadow Berrin. She had a loved family, who had no ties to any blood supremacists. Morgan was a sweet child, who went everywhere with her two pure-blood parents. It was when she was six years old, she went on a boating trip with her parents. There were plenty of other people there, both wizard and muggle. She was watching her father when a muggle lost control of his own boat and crashed into her fathers. Her father died in a bloody explosion, nothing they could do about it. Her mother and her were heartbroken. They wanted to do something. That's when she gained her first taste of hatred for muggles.
Morgan stayed sweet, but she, as well as her mother, Lillith Jenner, traveled much lesser, but they still did travel, whether it was back to her fathers grave, or just on an outing. Morgan's surname became Jenner. Morgan wasn't okay with it when her mother, about a year later, started becoming closer to a muggle man. She didn't trust him, not just because of his blood. One day, despite Morgan's many disagreements with her mother, Lillith Jenner married Jean Prideaux…
Lillith had married Jean, her last name had legally become Morgan Prideaux-Jenner. Morgan kept it just Jenner. Morgan's powers had shown at eight years of age. Her muggle stepfather knew she was a wizard, yet never accepted it. When her mother was off to work, in a muggle factory, Jean had hit her, punched her, threw her in a room, and threw away the key, only digging it up when he knew her mother was to come home. Morgan had tried desperately, many times, to convince her mother, always, her mother had simply said, "Ces mensonges! Laissez-moi être heureux, fille." (Such lies! Let me be happy, Daughter.) She only ever found comfort in her best friend, Sebastion Vermont's arms. To this day, Sebastion is the only person to ever see Morgan cry.
Eventually, as her hatred for muggles grew stronger, she stopped trying to tell her mother completely, endured the beatings. She had started trouble at her own school, Beauxbâtons, and even tried to start trouble with Jean. Lillith stopped her multiple times from almost killing her step-father. After the thousandth call from her school, Lillith had finally had enough.
Her mother sent her away, to live with her aunt in England. She knew she'd have to go to Hogwarts, and she was happy to be away from them.
At Hogwarts, life here was not as simple as it she thought it would be, being forced into a 'secret' Blood Supremacist group, her best friend coming to Hogwarts from France, and getting in a lot more trouble, though she said it was just 'relieving some frustration'. She took a liking to a few places, the White Tomb and Merpeople Kingdom being her favorite places to hang out and think, and her houses common room being her favorite place to read. She took a secret liking to the Dark Arts, but for a long time didn't try any, and Defense Against the Dark Arts also, there's no point in doing it if you can't defend yourself against it, right?
n her second, and almost third, year at Hogwarts, she tried to be a bit nicer to her mother, and even had talked about killing her stepfather. She had started teaching herself Dark Magic more, and with the help of her father, whom she had thought dead, but was later found out to be the one person she almost despised passionately, Shadow Berrin. With all her problems, comes gold in a coal mine, her best friend (and crush for years) Sebastion finally asked her out.
Having been engaged to Sebastion for a few months, before they went their separate ways, Morgan now provides for her daughter, Élisabeth "Lili" Vermont, on her own, after losing her job in the Ministry, working at the Cauldron again. Her father, who turned up and ended up being not insane, is in her life, as well, now.
A year later, after finding her father dead, and after she just buried her sister, too, she moved to France, but is back now.