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Victoire Weasley (b. May 2, circa 1999 or 2000)

Hogwarts c. 2011. Victoire is the daughter of Bill and Fleur Weasley. Harry’s son, James, caught Victoire snogging Teddy Lupin on Platform 9 ? as she was preparing to leave for what was most likely her seventh year at Hogwarts; at the time she would probably have been seventeen, and Teddy nineteen (DH/e). She was born on May 2nd, the anniversary of the victory over Voldemort (YL).
Но я искать пруфы не буду (лексикон).

Calculating the ages of the Weasley children
There has been much confusion about the relative ages of the Weasley children. Jo cleared this up on WEB LINKher website with the definitive answer that "Bill is two years older than Charlie, who is three years older than Percy, who is two years older than Fred and George, who are two years older than Ron, who is a year older than Ginny."