Mother-daughter fashion — essentially a “copy to copy” of adult to childrenswear — got its start with legendary French couturier, Jeanne Lanvin . Upon becoming a mother to her only daughter, Marguerite di Pietro, Lanvin created a children’s line and perfume among other items inspired by her daughter. This laid the groundwork for the burgeoning category. Women’s Wear Daily first highlighted Lanvin’s entry into the space in 1919, showcasing her work alongside French designer Cheruit in an article titled “Children’s Models From the Rue de la Paix.” Lanvin’s signature designs became a mainstay of her fashion label until her death in 1946. “Mother, Daughter Styles in Gift Promotion,” WWD, Dec. 17, 1952. Fairchild Archive The fun of matching “big and little” fashions evolved into one of fashion ’s most popular categories, encompassing dresses, pajamas, undergarments, shoes, jewelry and accessories. It gained momentum in the 1930s when fashion shows were staged at The Plaza hotel in New York and other cities.…