Esmeralda (Took) Brandybuck
From the One Wiki to Rule Them All, the Lord of the Rings Encyclopedia.
Esmeralda (Took) Brandybuck (b. TA 2936 SR 1336): A descendant of Gerontius "The Old" Took, and younger sister to Thain Paladin Took II. She married Saradoc Brandybuck and was thus both Peregrin Took's aunt and Merry Brandybuck's mother.
