Mumenno Ito [Japanese: 伊藤う免の] (7 October 1905 - 20 August 2016) was a Japanese supercentenarian who is currently unverified She lived in Takahata, Yamagata Prefecture, Japan, and she was the oldest living person in Yamagata Prefecture from the death of Ishie Sato on 10 May 2016 until her own death on 20 August 2016 at the age of 110 years, 318 days.