Nancy Kissinger spent much of her public life beside one of the twentieth century's most recognizable diplomats, but her command of foreign affairs came first. The former Nelson Rockefeller aide, international-studies director and philanthropist died in South Kent, Connecticut, on August 20, 2026, at 92, The New York Times reported.

Born Nancy Sharon Maginnes on April 13, 1934, she was raised in White Plains, New York, attended the Masters School in Dobbs Ferry and graduated from Mount Holyoke College in 1955. She later earned a master's degree in history at the University of California, Berkeley, an education that prepared her for substantive work in the circle around New York governor Nelson Rockefeller.

In 1964, Maginnes became a foreign-affairs research assistant to Rockefeller. TIME described her first assignment as research for a Rockefeller task force directed by Henry Kissinger, then a Harvard professor and Rockefeller adviser. When he moved to Washington, she remained with the Rockefeller Brothers Fund. From 1972 through 1975, she directed international studies for Rockefeller's Commission on Critical Choices for Americans. Her career was grounded in research and policy before her surname became inseparable from the diplomatic life of the era.

Nancy Maginnes married Secretary of State Henry Kissinger in Arlington, Virginia, on March 30, 1974. TIME reported that the small ceremony lasted four minutes and was followed by a flight on Nelson Rockefeller's jet. She soon entered a demanding schedule of diplomatic functions and international travel. Bruce Tully, a Diplomatic Security agent who joined her protective detail in 1976, later told the Association for Diplomatic Studies and Training, "Nancy Kissinger was one of the most gracious, lovely women I ever met." He also recalled that she watched out for the agents assigned to her.

Her marriage to Henry Kissinger lasted until his death in 2023. Their partnership placed her close to diplomatic history for nearly half a century, yet her later public work also showed where she chose to direct her own time and standing: schools, scientific research and animal health.

In 1997, she helped found Rockefeller University's Women & Science initiative with Lydia Forbes, Isabel Furlaud and Sydney Shuman. The program connected supporters with scientific research and expanded backing for women investigators. Rockefeller University said the initiative ultimately raised more than $50 million for women researchers. In 2015, the four founding chairs received the university's David Rockefeller Award for Extraordinary Service. Kissinger later held trustee emerita status there.

She also remained connected to the school that had educated her. The Masters School listed Nancy Maginnes Kissinger, class of 1951, among its honorary trustees. At the Animal Medical Center in New York, she served as a trustee and in 2018 co-chaired the Top Dog Gala, an event supporting veterinary care, research and education.

Kissinger's enduring record was defined by the policy research she conducted under Rockefeller, the scientific opportunities advanced through Women & Science, and the institutions she helped govern. Together, those contributions traced a life that moved from the study of international affairs to sustained support for knowledge, education and care.