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Shizu Satō

Stefan Maglov
Validated By: Stefan Maglov On Date: Dec. 29th 2019

Shizu Satō (Japanese: 佐藤志ず) was a Japanese supercentenarian who was the oldest living person in Nagano Prefecture upon her death. Her age has been validated by the Gerontology Research Group (GRG) and recognised by LongeviQuest (LQ).


Satō was born in Iiyama, a city in Nagano Prefecture, on 9 December 1907. She was the fourth of six children born into a farming family. From an early age, Satō assisted with rice planting and harvesting, and later graduated from Jinjo Elementary School (Higher Course – now Junior High School) at the age of 14.

Satō moved to Tokyo alone as a young adult in order to work at her relative’s clothing store. There she met Yoshinori Satō, and married him shortly thereafter.

For 10 years Satō lived in Tokyo. During World War II, her husband was conscripted for combat in China, and she later evacuated to her hometown with her eldest son. After the war’s end, she and her husband, now with four children, devoted their working lives to dairy and rice farming, as well as fruit and vegetable cultivation.

After her retirement aged 70, Satō enjoyed watching television. At around 80, she became a baseball fan after watching the games played by the San Francisco Giants. In an interview with the Shinano Mainichi Shimbun, Satō claimed the secret to her longevity was, “I’m doing what I love, so the stress is bearable.” She never had a serious injury or illness in her life.

Until the age of 102, Satō regularly walked the streets of her neighbourhood, and partook in conversations at her friend’s house.

In September 2019, Satō was reported as the second-oldest resident of Nagano after Michiko Yamazaki. Following Yamazaki’s death on 31 October that year, Satō became the oldest in the prefecture.

Satō died in Iiyama, Nagano, on 23 August 2020 at the age of 112 years, 264 days. She was succeeded as the prefecture’s oldest living person by Miyao Mashima, then aged 110.

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Satō’s age was verified by Stefan Maglov, Yumi Yamamoto, and Japan’s Ministry of Health, Labour, and Welfare (MHLW), and was validated by the GRG on 29 December 2019.

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  • 「元気100歳時代=佐藤志ずさん 今夏の初の玄孫誕生楽しみに おしゃべり大好き、病知らず」, 2014.01.12 信濃毎日新聞朝刊 26頁

  • Shinano Mainichi (Morning Edition), 29 August 2020, page 31