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Yoneno Kōno

Validated By: On Date: Jun. 28th 2013

Yoneno Kōno (Japanese: 河野ヨネノ) was a Japanese supercentenarian who was the oldest living person in Ehime Prefecture. She was also the prefecture's longevity recordholder from 2015 until 2018. Her age has been validated by the Gerontology Research Group (GRG) and recognised by LongeviQuest (LQ).


Kōno was born in Matsuyama, Ehime Prefecture’s capital city, on 7 August 1902. She enjoyed playing gateball as a nonagenarian, and kept a daily diary until this time.

Following the death of 112-year-old Takeno Fujita on 3 August 2012, Kōno became Ehime Prefecture’s oldest resident. She attained supercentenarian status four days later, and, in April 2015, surpassed Fujita’s age to become the oldest person ever in the prefecture.

Kōno died in Shimoidai, Matsuyama City on 24 April 2015 at the age of 112 years, 260 days. She was succeeded as the oldest living person in Ehime by Osugi Sogo, then aged 109, who went on to break Kōno’s age record for the prefecture in 2018.

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Kōno’s age was verified by Anson Davis and Japan’s Ministry of Health, Labour, and Welfare (MHLW), and was validated by the GRG on 28 June 2013.