Replying...
Intro. Harry had a twin sister who looked very similar to them. They lived with their aunt and her husband after the death of their father when they were one year old. Their aunt and her husband did not treat them well and beat them, even their son Dudley, when they were 10. In a few days, they would be 11. They protected each other, and the same events took place in the Harry Potter novel, but with the presence of Harry’s sister.

Harry Potter and his twins

@Hadil