https://en.wikipedia.org/wiki/Daniil_Dubov#Personal_life

Daniil Dmitrievich Dubov (Russian: Даниил Дмитриевич Дубов; born 18 April 1996) is a Russian chess grandmaster. He achieved his final norm for the Grandmaster title at the age of 14 years, 11 months, 14 days in 2011.[1] He is the previous world rapid champion, winning the World Rapid Chess Championship held in Saint Petersburg from 26 to 28 December 2018.