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Shoshanna Lonstein Gruss

Shoshanna Lonstein Gruss is an American fashion designer, writer, and entrepreneur best known as the founder and creative director of the fashion label Shoshanna, launched in 1998.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

Shoshanna Lonstein Gruss is an American fashion designer, writer, and entrepreneur. She is best known as the founder and creative director of the fashion label Shoshanna, launched in 1998. She became widely known in the 1990s through media coverage of her relationship with comedian Jerry Seinfeld, and later built a career in fashion.

Early life and education

Lonstein Gruss was born in New York City on May 29, 1975. She studied at the University of California, Los Angeles before returning to New York and entering the fashion business.

Fashion career

She launched Shoshanna in November 1998, initially focusing on dresses designed for women with larger busts. The brand later broadened into swimwear, sportswear, eveningwear, and related categories. Her line gained early retail distribution in stores including Bloomingdale’s, Saks Fifth Avenue, and Barneys.

Public profile

Lonstein Gruss first became widely known through media coverage of her relationship with Jerry Seinfeld in the 1990s. Later coverage focused more on her independent career and business success.

Later work and philanthropy

In addition to her fashion label, she has been associated with Elizabeth Arden as its first style director and has been involved in New York philanthropic activities, including work connected to Memorial Sloan Kettering.

Key facts

  • Shoshanna Lonstein Gruss founded the fashion label Shoshanna in 1998.
  • The brand began with dresses and later expanded into swimwear and other categories.
  • Her line gained early retail distribution in stores including Bloomingdale’s, Saks Fifth Avenue, and Barneys.
  • She studied at UCLA and later returned to New York before starting her business.
  • She married Joshua Gruss in 2003 and they later divorced in 2014.

Frequently asked questions

Who is Shoshanna Lonstein?
She is an American fashion designer, writer, and entrepreneur best known for founding the Shoshanna clothing label.
What is Shoshanna Lonstein known for?
She is known for creating the fashion brand Shoshanna, which launched in 1998 and became known for dresses and later expanded into other apparel categories.
When was Shoshanna founded?
The Shoshanna label was launched in November 1998.
What did her brand sell first?
The company began with dresses, especially styles aimed at flattering women with larger busts.
Is Shoshanna Lonstein married?
She married Joshua Gruss in 2003, and available sources indicate they later divorced in 2014.
How many children does she have?
Sources say she has three children.

References

  1. Wikipediahttps://en.wikipedia.org/wiki/Shoshanna_Lonstein_Gruss
    Supports: Birth date, occupation, and role as founder/creative director of Shoshanna.
  2. Los Angeles Timeshttps://www.latimes.com/archives/la-xpm-2000-feb-15-cl-64314-story.html
    Supports: Return to New York, start of the line, launch timing, and early business development.
  3. CBS Newshttps://www.cbsnews.com/news/former-girlfriend-now-a-star/
    Supports: UCLA education and early fashion-business profile.
  4. Shoshannahttps://shoshanna.com/
    Supports: Brand ownership and description of Shoshanna's collections and creative director role.
  5. YourTangohttps://www.yourtango.com/2019326543/who-shoshanna-lonstein-38-year-old-jerry-seinfeld-dated-when-she-was-17
    Supports: Marriage to Joshua Gruss, children, and style director role; secondary source used cautiously for corroboration.
  6. Haute Livinghttps://hauteliving.com/2016/11/haute-secrets-fashion-designer-shoshanna-grusss-new-york/624640/
    Supports: Expansion of the brand, philanthropic involvement, and Elizabeth Arden style director role.