Queenie Goldstein

Queenie was Porpentina Scamander's younger sister..@MaddieDUHx Queenie's younger. by J.K. Rowling on Twitter

By extension she was, later in her life, sister-in-law to Newton Scamander, great-aunt of Rolf and great-great-aunt of twin boys Lorcan and Lysander.

Appearances

 * Fantastic Beasts and Where to Find Them