March 18th, 2017 - For the Bal de la Rose 2017, Charlotte wore what is probably her mom’s Chanel gown that she wore in December 2000 in Monaco. Apparently, it is from a 1996 haute couture collection by the brand.
Source: http://www.vogue.com/article/monaco-royals-princess-caroline-charlotte-casiraghi-chanel-rose-ball
UPDATE: The gown is definitely from the Fall 1996 Couture collection.











