At least some content in this article is derived from information featured in Harry Potter: Hogwarts Mystery. Spoilers will be present within the article.
At age eleven, he went to Ollivander's in Diagon Alley, and caused Mr Olivander's inkpot to explode when trying out wands. He attended Hogwarts School of Witchcraft and Wizardry for an unknown period of time and was sorted into an unknown house.
However, at some point during his later school career, Jacob began searching for the fabled Cursed Vaults, breaking all sorts of school rules and endangering the entire school in the process. Although the exact consequences of his search is was not widely known, his former peers and later students alike would discuss it long afterwards, chief among the many rumors being that he unleashed several curses upon the school, and even was cursed himself and that he eventually went mad. Ultimately, however, he was expelled from school. His expulsion was covered in the Daily Prophet.
Shortly thereafter, he ran away from home and had been missing ever since. It was widely believed that Jacob joined Lord Voldemort following his disappearance. When his younger sibling eventually attended Hogwarts, they ended up being sorted into the same house he was, and were haunted by his negative reputation. Even so, Jacob's sibling rejected the idea of Jacob having ever had anything to do with "He Who Must Not Be Named", maintaining that Jacob loved his family, and he loved Hogwarts, expressing naught but concern for his well-being.
Behind the scenes
- Jacob is the older brother of the player's character in Harry Potter: Hogwarts Mystery. The house he belongs to in the game is dependent on the one selected by the player for their character.
- In the Beta mode of the game, there were scenes where the name Jacob was originally William. It's likely that the name was changed for the final cut of the game. However, it's unknown whether William was intended to be another character and older sibling of the player and Jacob, who was later cut from the game. It’s also possible it was changed because of Bill Weasley's presence.