Wladimir Klitschko world heavyweight champion) dominated heavyweight boxing, a period typically known as the "Klitschko Era" of the division. Klitschko was born in Semipalatinsk (now Semey), Kazakh SSR, Soviet Union (now Kazakhstan). His father, Vladimir Rodionovich Klichko (1947–2011), was a Soviet Air Force major general and a military attaché of Ukraine in Germany; he was also one of the commanders in charge of cleaning up the effects of the Chernobyl disaster in 1986 and was afterward diagnosed with cancer. Wladimir's mother is Nadezhda Ulyanovna. He is the younger brother of former WBC, WBO and Ring magazine heavyweight champion Vitali Klitschko, the current
Klitschko brothers down, Vitali Klitschko is widely regarded as the tougher fighter of the two. In fact, Vitali is the only heavyweight world champion to have never been knocked down in any fight, and alongside George Foreman he is the only heavyweight boxer in history to defend a world title after turning 40. Furthermore, his 87% knockout percentage is one of the best knockout-to-fight ratios of any champion in heavyweight boxing history. Vitali was also known for being unusually dominant in his fights, having almost never lost a round in his professional career as a boxer. During his time as WBC champion,