Equestria over 2000 years ago.
James Potter, now known as king Aeon, stood by his wife side, Queen Galaxia, as she was giving birth to their first foal. all of his focus was encouraging and comforting his wife, to the point where one of the nurses had to nudge him quite hard to get his attention. He looked at her, and noticed the bundle of cloth held in her magical aura. Before he could ask, she had given him her congratulations, and informed him that his firstborn was an alicorn colt. She then gently handed the newly born prince over to his father, before leaving the room to give the family some privacy.
As Aeon carried his son closer to his wife, he heard her asking"What should we name our new son?"
"Well he has got your eyes and coat, my dear," he answered," but his mane and tail shares traits with the both of us. Should he ever travel to my old world, he can take the name Harry James Potter if he wishes, but foe now how about Prince Solo Storm for now? "
"That is a nice name James, and I think little Storm here like it as well." Galaxia smiled at him as her son was now sleeping, nestled under her wing."Would you be so kind dear, and get me a glass of water, please?"Oh how she loved to tease him with his old name, which annoyed him to no end.
"Could you please stop calling me 'James', Galaxia? You know I give up that name long ago. Just call me Aeon, please." he said to her. "I know dear it's just that teasing you is to much fun, and easy to boot. Now, be a good husband and bring me that glass of water?"
"I got the drink you asked for love." Aeon said as he returned a couple of minutes later. He set the glass down on the bedside table, along with a full jug so that he wouldn't have to travel back and forth between the bed and the nearest sink.
Time went on for Galaxia, Aeon and their son Storm, Galaxia had given birth to two alicorn filly; Princesses Celestia and Luna, who were two and five year younger then Storm, respectively. Storm had begun to show some control over weather, more specifically storms, This had been discovered during an incident when he was three, and didn't get his way. As his cries got louder and louder, a tornado began to form not to far away from the castle. Luckily, Galaxia and Aeon had been able to calm him down down down, and started teaching little Storm how to control, his magic after that. It would later be discovered that Celestia could move the Sun, while Luna could move the Moon and Dream walk.
Another year flew by, before both Aeon and Galaxia felt something; for one reason or another, James had to return to England. This would normally cause no trouble, but something told them that Solo Storm has to come with. After hours discussion, they could only find one reason; a prophesy from Aeon's old world, which spoke of a child, born at the end of July, who would vanquish a dark lord with powers unknown to the dark lord. Galaxia used her magic to send Aeon back to his world together with Storm, He and Storm, now under the name of Harry James Potter, moved in with one Lilly Evans, James' friend and the only one who knew their true identities. Their cover story was that James and Lilly had married, and Lilly had given birth to Harry. They lived peacefully for a few months, until what would become the most famous Halloween in modern wizard history.