Jack Schlossberg Speaks Out on the Passing of His Sister, Tatiana Schlossberg
Jack Schlossberg has spoken out regarding the tragic passing of his sister, Tatiana Schlossberg.
On January 5, Jack, 32, took to Instagram to share a heartfelt tribute to his late sister. The post featured several uplifting quotes, including one from Tatiana herself.
“It’s our responsibility to establish a nation that genuinely regards its commitments to the planet, to one another, and to those who will inherit a world that is different from the one we’ve known for the last 10,000 years,” Tatiana expressed in her 2019 book, Inconspicuous Consumption.
The quote continued, “What I’m describing is essentially hard work that may yield limited success for the remainder of our lives. However, it’s imperative that we pursue it, and ultimately, we will find satisfaction in knowing we made a positive impact.”
Jack also included quotes from their grandfather, former president John F. Kennedy, along with remarks from Herman Melville, Alfred Lord Tennyson, Buddha, Abraham Lincoln, Robert Frost, and others. The last image in Jack’s post showcased a nostalgic photo of the siblings.
It was announced at the conclusion of December 2025 that Tatiana had passed away after battling cancer at the age of 35.
“Our cherished Tatiana left us this morning. She will forever remain in our hearts,” stated the JFK Library Foundation on December 30, 2025, in an Instagram post signed by Tatiana’s husband George Moran, children Edwin, 3, Josephine, 19, parents Caroline Kennedy and Edwin Schlossberg, as well as siblings Jack and Rose Schlossberg, including sister-in-law Rory Schlossberg.
Just a month before her untimely death, Tatiana revealed in an essay for The New Yorker that she had been diagnosed with acute myeloid leukemia and was given a prognosis of only one year to live.
“I simply could not — would not — accept that they were referring to me. I swam a mile in the pool the day before, nine months pregnant. I felt perfectly healthy. I was truly one of the healthiest people I knew,” she shared in November 2025. “I had a son whom I adored more than anything, and a newborn who needed my care.”
After the news of Tatiana’s passing, numerous members of the Kennedy family honored the late environmental journalist.
“This makes no sense to me. None at all,” Tatiana’s cousin Maria Shriver expressed via Instagram. “Tatiana was an exceptional journalist, using her voice to enlighten others on environmental issues. She built a beautiful life with her extraordinary husband George, and their children Eddie and Josie. She fought valiantly. She was strong, courageous, and fearless.”
Earlier that Monday, the Kennedy family convened in New York City for Tatiana’s funeral. The intimate service took place at The Church of St. Ignatius of Loyola on the Upper East Side, attended by Moran, Edwin, Josephine, and others.
On the same day, the Kennedy family shared a previously unseen photo of Tatiana with her loved ones before her passing.
“As we honor Tatiana and reflect upon her life, our thoughts are with her family and all those who cherished her,” read the caption of an Instagram post from the JFK Library Foundation.
