British supercentenarians are citizens or residents of, or emigrants from, the United Kingdom who have attained or surpassed 110 years of age. As of January 2015, the Gerontology Research Group (GRG) had validated the longevity claims of 154 British supercentenarians, including 23 emigrants who died in other nations. The oldest known British person ever was Charlotte Hughes who died in 1993 at the age of 115 years, 228 days. The oldest man ever from the United Kingdom was Henry Allingham who died in 2009 at the age of 113 years, 42 days. As of 1 July 2021, the oldest person living in the United Kingdom is Gertrude Annie Kingston, born 1 February 1909, aged 112 years, 150 days.