Winery Information

Winery Information for: William and Mary Wine Company

Winery Location: United States: California: North Coast: Napa County: Napa Valley
Winery Founded: 1/1/2014
Winery Founded by: Will Segui
Winery Current Owner: Stan and Barbara Joynes, Jim and Mary Miley Theobald, Linn Kreckman, Janet Kay, and Bobby and Karen Edwards
Winery Description: William & Mary Wine Company, founded in 2014 by Will and Mary Segui, is a family-owned winery dedicated to producing small-lot wines that showcase the unique terroir of the Shifflett Ranch in Napa Valley's Oak Knoll District. The Shifflett Ranch, a multi-generational property acquired by the Shifflett family in the late 1940s, serves as the primary vineyard source for their wines. William & Mary's portfolio includes Cabernet Sauvignon and Proprietary Red blends, crafted with a focus on expressing the distinct characteristics of the vineyard. Their wines are offered through allocation, with enthusiasts encouraged to join their mailing list for access to future releases. The winery's commitment to quality and authenticity has garnered attention from wine critics and enthusiasts alike.
Winery Web site URL: https://williammarywineco.com/
Winery Mailing List URL: https://williammarywineco.com/signup/
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Instagram URL: http://instagram.com/williammarywineco
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Last updated information for this winery on: 2/20/2025

William and Mary Wine Company wine releases

2025 Wine Releases

2024 Wine Releases
  • January 2024;
  • February 2024;
  • March 2024;
  • April 2024;
  • May 2024;
  • June 2024;
  • July 2024; 2022 Napa Valley Oakville Cabernet Sauvignon (150 cases, $95), 2022 Napa Valley Shifflett Ranch Proprietary Red Merlot/Cabernet Franc/Cabernet Sauvignon (100 cases, $95), 2022 Napa Valley Shifflett Ranch Cabernet Sauvignon (100 cases, $125)
  • August 2024;
  • September 2024;
  • October 2024;
  • November 2024;
  • December 2024;

2023 Wine Releases
  • January 2023;
  • February 2023;
  • March 2023;
  • April 2023;
  • May 2023;
  • June 2023; 2021 Napa Valley Oakville Cabernet Sauvignon, 2021 Napa Valley Shifflett Ranch Proprietary Red, 2021 Napa Valley Shifflett Ranch Cabernet Sauvignon
  • July 2023;
  • August 2023;
  • September 2023;
  • October 2023;
  • November 2023;
  • December 2023;

2022 Wine Releases

2021 Wine Releases

2020 Wine Releases

2019 Wine Releases

2018 Wine Releases

2017 Wine Releases

2016 Wine Releases

2015 Wine Releases

2014 Wine Releases

2013 Wine Releases

2012 Wine Releases

2011 Wine Releases

2010 Wine Releases

2009 Wine Releases

2008 Wine Releases

2007 Wine Releases

2006 Wine Releases

2005 Wine Releases

2004 Wine Releases

2003 Wine Releases

2002 Wine Releases

2001 Wine Releases

2000 Wine Releases
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