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Madison Warner cause of death: What happened to Sen. Mark Warner's daughter? Juvenile diabetes and other illnesses

Madison Warner, 36, daughter of Virigina Sen. Mark Warner, has died after battling juvenile diabetes and other health issues, her family confirmed Monday.

Updated on: Apr 20, 2026 9:57 PM IST
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Madison Warner, the 36-year-old daughter of Virginia Democrat Senator Mark Warner, has passed away, the Senator and his wife, Lisa Collis, confirmed on Monday. Madison Warner has been dealing with juvenile diabetes and other health issues that led to her death, the Warner family confirmed.

Senate Intelligence Committee Vice Chairman Sen. Mark Warner of Virginia. (AP)
Senate Intelligence Committee Vice Chairman Sen. Mark Warner of Virginia. (AP)

“We are heartbroken beyond words by the passing of our beloved daughter, Madison, 36, after a decades-long battle with juvenile diabetes and other health issues. She filled our lives with love and laughter, and her absence leaves an immeasurable void,” a statement from the Senator and his wife read.

“We are grateful for the loving support of friends and family during this difficult time and ask for privacy as we navigate this profound loss.”

Madison Warner Cause Of Death: Juvenile Diabetes And More

Despite Mark Warner holding a public office for over a decade, the health issues of his eldest daughter were never publicly discussed. Despite noting in the statement that she was suffering from juvenile diabetes "for over a decade," Mark Warner, or his wife Lisa, had not discussed it publicly before.

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Warner referenced in 2013 that one of his daughters had Type 1 diabetes. The post on Senator Warner's website, which documents his advocacy for the Special Diabetes Program, notes: "One of Senator Warner’s three daughters also suffers from Type 1 diabetes, and he continues to fight for funding and support for diabetes research side by side with other families affected by diabetes." This occurred after meeting Katie Helen and her service dog Lily on August 28, 2013.

The post then goes on to state: "As a long-time supporter of SDP, Senator Warner is particularly encouraged by the innovative research being done in the Commonwealth. UVA’s Center for Diabetes Technology has one of the only outpatient test-sites in the country for the portable artificial pancreas. UVA researchers have co-authored a study on making the ‘artificial pancreas’ mobile by providing nearly continuous, closed-loop, outpatient control of blood sugar."

However, no further details about who the daughter was were revealed in the post. Furthermore, no interviews, speeches, or statements later explicitly linking Madison to the illness predate the death announcement.

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Mark Warner Children: What To Know

Mark Warner has been married to his wife Lisa Collis since 1989, and they have three daughters. Apart from Madison, who was their eldest, there are daughters Gillian and Eliza.

Gillian Warner runs Warner Equine at Tadpole Lane Farm in Pennsylvania Furnace, Pennsylvania. Eliza Warner works as an International Investment Associate at In-Q-Tel in London.

Mark Warner and Lisa Collis live in Alexandria, Virginia.

  • Shamik Banerjee
    ABOUT THE AUTHOR
    Shamik Banerjee

    Shamik is a journalist covering the United States for Hindustan Times. He has more than four years of experience reporting on US politics, sports, and major breaking stories across fast-moving cycles. He previously worked at Times Now and Sportskeeda, building strong newsroom instincts and digital storytelling skills. At HT.com, he focuses on day-to-day coverage of US political developments while also handling high-impact stories that demand speed, accuracy, clarity, and context under pressure. Shamik has extensive experience covering NFL game days over the past two years, coordinating live updates, analysis, and explainers. He is particularly drawn to large news moments such as US elections and the Super Bowl, where he thrives at the news desk working alongside the team. He holds degrees in Media Studies from Jamia Millia Islamia and English Literature from Jadavpur University. Before entering journalism, he briefly worked in digital marketing and political consultancy roles. Currently a Senior Content Producer at HT Digital, he is driven by curiosity, discipline, and a constant desire to explore new and obscure topics. Outside work, he enjoys reading, films, sports, and learning continuously.Read More

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