Delacour, Gabrielle

From Wikipotter

Gabrielle Delacour is the younger sister of Fleur Delacour. In the Goblet of Fire, Gabrielle is Fleur's chosen one. She is put under the water along with Hermione Granger, Ron Weasley and Cho Chang. When Fleur is unable to retrieve Gabrielle, Harry saves her and Ron even though the merpeople try to stop him. Fleur has never forgotten this.

Gabrielle was a bridesmaid with Ginny at Fleur's wedding to Bill Weasley.

In the films she is played by Angelica Mandy.