Prequel
Beatrice (Beatty) Rosalie Crouch was born in December of 1972. She was sorted into Slytherin, getting into Hogwarts after the end of the first wizarding war. She grew up to join the aurours, fighting alongside her friend from school; Nymphadora Tonks. When the Sirius Black escaped Azkaban, she was out on her first front line mission. She'd heard what he'd done in the first world war and couldn't understand how he could betray his friends for the dark lord; but her own brother did the same with her whole family.
When she met him, however, she wasn't expecting to fall in love. She never did tell him how she hated her full name, but he seemed to already know. Instead, he called her something once that shocked her to her core.
"Rori"
When he fell through the veil, she felt like a piece of her soul had died. She mourned longer than them all. Until one day, a gift fell upon her doorstep, the letter being signed by a name she could never forget.
She never did get the chance to tell him how she felt.
...
Aurelia Beatrice Crouch was born in December of 1959.
Her older brother Barty was three when she was brought into the world.
She was the illegitimate child of Bartemius Crouch Sr. or at least that's the lie they construed when Beatrice found herself back in time.
The year was 1970, and, after an incident with a gift signed by her dead lover, Beatrice found herself outside her father's office...
...2 years before she was born.