Watch: Jack Schlossberg Supports Sister Tatiana Schlossberg After Terminal Cancer DiagnosisJack Schlossberg is standing by his family. After his sister Tatiana Schlossberg shared her terminal cancer diagnosis, the son of Caroline Kennedy and Edwin Schlossberg offered his support on social media. In a series of posts on his Instagram Stories Nov. 22, Jack, 32, reposted excerpts from Tatiana's New Yorker essay, in which she detailed being diagnosed with acute myeloid leukemia after giving birth to her second baby with husband George Moran in May 2024. The congressional candidate-who announced his run for office earlier this month-went on to offer a personal note as he posted a photo of a concrete road, followed by a picture of a blue sky. On both images, he wrote, "Life is short-let it rip." Tatiana-who also shares 3-year-old son Edwin Jr. with George-explained in her essay that she underwent chemotherapy, a bone-marrow transplant and a clinical trial of CAR-T-cell therapy to treat the rare bone cancer. After receiving the treatments, her doctors estimated she likely has one year to live.readKennedy Grandson Jack Schlossberg Slams Ryan Murphy Over Claim He Can't Even Remember Uncle JFK Jr.

In the face of her prognosis, the 35-year-old reflected on how her family, including Jack and their sister Rose Schlossberg, have supported her through her cancer journey. "My parents and my brother and sister, too, have been raising my children and sitting in my various hospital rooms almost every day for the last year and a half," she wrote in the piece. "They have held my hand unflinchingly while I have suffered, trying not to show their pain and sadness in order to protect me from it. This has been a great gift, even though I feel their pain every day."Instagram StoriesThe environmental journalist also paid tribute to her husband-whom she wed in 2017-writing that he "did everything for me that he possibly could." "I know that not everyone can be married to a doctor, but, if you can, it's a very good idea," she said. "He is perfect, and I feel so cheated and so sad that I don't get to keep living the wonderful life I had with this kind, funny, handsome genius I managed to find." For now, Tatiana wrote that her focus is on her kids. "Mostly, I try to live and be with them now," she continued. "But being in the present is harder than it sounds, so I let the memories come and go."Keep reading for a closer look at the Kennedy family tree.

Everett/ShutterstockJoseph P. Kennedy and Rose KennedyJoseph Patrick "Joe" Kennedy married Rose Elizabeth Fitzgerald on Oct. 7, 1914.

Bachrach/Getty ImagesBy 1932, they had nine children together: Joseph P. Kennedy Jr., John F. Kennedy, Rosemary Kennedy, Kathleen Kennedy, Eunice Kennedy, Patricia Kennedy, Robert F. Kennedy, Jean Kennedy and Edward Kennedy.

Keystone-France/Gamma-Keystone via Getty ImagesJoseph P. Kennedy Jr.

Born July 25, 1915, Joe Jr. was going to be president, as far as his father was concerned. He was a delegate to the 1940 Democratic National Convention and planned to run for Congress after he got out of the Navy. But the 29-year-old and his co-pilot Wilford John Willy were killed Aug. 12, 1944, when explosives they were carrying detonated prematurely while on a bombing run that was part of Operation Aphrodite. Neither pilot's body was ever recovered and their names are among those on the Tablets of the Missing at the Cambridge American Cemetery and Memorial honoring casualties of World War II.

Mikki Ansin/Getty ImagesJohn F. KennedyIt was John, born May 29, 1917, who made it to Congress, then became a U.S. senator and ultimately was elected president in 1960. He married Jacqueline Bouvier on Sept. 12, 1953, and they welcomed daughter Caroline Kennedy on Nov. 27, 1957, and son John F. Kennedy Jr. on Nov. 25, 1960. A daughter, Arabella, was stillborn in 1956 and son Patrick, born prematurely on Aug. 7, 1963, lived for only 39 hours. JFK was assassinated on Nov. 22, 1963, one of the defining events of the 20th century.

Tatiana, Jack, Rose, Edwin, Caroline (Clodagh Kilcoyne/Getty Images)Caroline KennedyCaroline, the U.S. ambassador to Japan during the Obama administration and to Australia for the Biden administration, married Edwin "Ed" Schlossberg in 1986. They share daughters Rose Kennedy Schlossberg (born June 25, 1988) and Tatiana Kennedy Schlossberg (May 5, 1990) and son John "Jack" Bouvier Kennedy Schlossberg (Jan. 19, 1993). TV producer Rose went to Harvard like her mom and married restaurateur Rory McAuliffe in 2022. Tatiana-a journalist who didn't know at the time that her 2014 New York Times article about a dead bear being found in Central Park involved her cousin RFK Jr.-graduated from Yale and married college sweetheart George Moran in 2017. They welcomed a son, Edwin Jr., in 2022, and a daughter in 2024. In November 2025, Tatiana shared in an essay for The New Yorker that she was diagnosed with acute myeloid leukemia, a rare blood cancer, which her doctors have said i