On October 31st 1981 Lily and James Potter were murdered by Lord Voldemort or he who must not be named or you know who.
They had a son and 2 daughters. Harry James Potter, Annabelle Lily Jalene Potter, and Hannah Lillian Isabella Marie Potter.
All of them were just one year olds.
"Is it true Albus?" Professor Mcgonagall asked, "James and Lily Potter dead?"
"Yes and Harry and Hannah have a lightning shaped scar," Replied Albus Dumbledore.
"And the other daughter?"
"She is cursed with the ability to read minds and see the future along with Hannah"
After James and Lily died miles away two babies started crying.