Born: 24 October 1966, Saratova, Russia
Father: Killed in building accident when his son was four.
Mother: Died of blood poisoning when Abramovich was 18 months old
Nationality: Russian
Marital status: married to Irina, five children
Wealth: £7.5billion
Origins: Started trading in oil in his early 20s. Raised money to buy Sibneft, a Siberian oil company, from the Russian state in 1995; Sibneft is now worth at least £8bn, of which Abramovich's stake is valued at £5.3bn. Numerous other business interests. Governor of remote Siberian region Chukotka
Footballing interest: Bought Chelsea in July 2003, rescuing the club from debts built up under former chairman Ken Bates