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French fashion designer Yves Saint Laurent pioneered “cross-design” in fashion, taking inspiration from street trends to modernize haute couture.

Saint Laurent was the first to launch a ready-to-wear label, YSL Rive Gauche Prêt-à-Porter. He was the first couturier to open boutiques for both men and women. Using traditional menswear fabrics and designs for women, Saint Laurent also literally cross-dressed, giving men and women alike chic pant suits, elegant tuxedo jackets and urban safari gear. By blurring gender-specific design, he empowered individual style while creating a scissor-sharp fashion aesthetic of sensual ease and beauty. Many of his designs are today considered timeless classics. Saint Laurent also consistently used Black models, like Mounia, Iman and Naomi Campbell, and he drew endless inspiration from different ethnicities and cultures, in no small part because of his Algerian roots.

Born to French parents in Oran, Algeria, in 1936, Saint Laurent went to Paris at age 17 to study fashion at the Chambre Syndicale de la Haute Couture. Just two years later, in 1955, his remarkable sketches were shown to Christian Dior, then the world’s reigning couturier, who hired him immediately.

Surprisingly soon thereafter, Dior publicly chose Saint Laurent as his successor, which sadly proved prescient when the fashion legend died unexpectedly, in 1957. A mere slip of a youth, the 21-year-old Saint Laurent was nevertheless up to the challenge. He shook the traditional couture clientele to its core with youthful silhouettes and styles like the A-line trapeze dress that hung with seeming effortlessness from the shoulders, the antithesis of the pinched waists and molded skirts that had been all the rage after the deprivations of World War II.

After a mandated spell in the torturous French military, Saint Laurent suffered a nervous breakdown and was dismissed by Dior in 1962. Out of the ashes rose the Age of Yves. With Pierre Bergé, his then-lover who became his lifelong business partner and friend, the designer founded Yves Saint Laurent YSL to encompass prêt-à-porter, or ready-to-wear. In 1966, they opened the first YSL Rive Gauche women’s boutique in Paris, followed soon thereafter by YSL Rive Gauche for men. Saint Laurent had given birth to a global brand.

His revolutionary Mondrian mini dress from 1965 is a core element of his fashion biography. It is a prime example of how Saint Laurent, an avid art lover and collector, looked to painters, from Goya to Picasso, Ingres to Matisse, for inspiration.

With its pure lines and hues, Mondrian’s ground-breaking 1935 color-block painting Composition C transmutes beautifully into a dress that is highly valued by collectors of contemporary fashion and widely copied commercially to this day. The design is the epitome of Saint Laurent’s aesthetic, requiring a meticulous hand piecing of each color block so that, despite the body’s curves, the visual plane is as flat as a canvas when the garment is worn. Mondrian’s purity met its match in Saint Laurent.

“I am no longer concerned with sensation and innovation, but with the perfection of my style,” Saint Laurent said four years before retiring, in 2002. After a long period of ill health, he died at his home in Paris on June 1, 2008. Under creative director Hedi Slimane, the house’s ready-to-wear collection was rebranded as Saint Laurent in 2012.

Browse an extraordinary collection of vintage Saint Laurent evening dresses, shirts, handbags and other clothing and accessories today on 1stDibs.

Ever since we’ve needed an accessory to carry our personal items when we’re on the go, shoulder bags have proven indispensable. Today, vintage and designer shoulder bags are such a treasured part of fashion history that they even get their own museum exhibitions. And while lovers of luxury handbags and purses are savvier now and have a wider range of shopping options, classics created by brands such as Louis Vuitton, Dior and Balenciaga still rule.

Prior to bags becoming an essential piece of any ensemble for any gender, women wore pockets strung on ribbons as garments that were separate from their gowns, accessible by openings in the fabric. Small handbags and handheld purses were developed before the accessory gained importance as functional and fashionable. Most had more in common with wallets than anything else.

While the bags of the 16th century warranted ornament, such as exteriors embroidered with silver-gilt thread and beads, it wasn’t until the late 18th century and early 19th century that the design and craft of bags had really broadened. Handheld purses were finished with details that were meant to garner attention, and bags were fitted with shoulder straps. A stylish shoulder bag meant that women could tote jewelry, cash and perhaps a decorative snuff box full of tobacco to an evening ball across town.

The early 1900s saw the introduction of gold and silver minaudières. The patenting of these compact bejeweled clutches has been attributed to revered French jewelry house Van Cleef & Arpels, and today they remain a fashion favorite. One of Judith Leiber’s innovative minaudières even earned a role in the movie Sex and the City.

A luxury shoulder bag is a work of art with a long, fascinating origin story, and entire brands and fashion lines have emerged around creating the perfect versions of shoulder bags and top-handle bags. For example, the iconic Hermès Kelly bag, which was popularized by actress Grace Kelly, is a widely coveted, collected and often faked entry from the handbag hall of fame. And while vintage Gucci tote bags have their own dedicated fan base, collectors are likely familiar with the Dionysus, a pared-down Gucci shoulder bag that manages to make a substantial statement anyway.

Embrace a classic look with a vintage shoulder bag designed by Chanel, Givenchy or Fendi — find yours on 1stDibs today.