Konstantin of Rostov was born on May 18, 1186 and died on February 2, 1218. Konstantin of Rostov would have been 31 years old at the time of death or 826 years old today.
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Konstantin Aseev was born on October 20, 1960 and died on August 22, 2004. Konstantin Aseev would have been 43 years old at the time of death or 51 years old today.
Konstantin Chernenko was born on September 24, 1911 and died on March 10, 1985. Konstantin Chernenko would have been 73 years old at the time of death or 100 years old today.