Klitschko brothers 5 months & 13 days. Vitali retained the WBC Heavyweight Championship until 15 December 2013, relinquishing his belt in pursuit of his political aspirations in his native Ukraine. The Klitschko brothers jointly run the professional boxing promotion companies ""K2 Promotions"" and ""K2 East Promotions"", as well as the ""Klitschko Brothers Fund"", a charity organization. They appear together on German TV shows and commercials, have a website shared between them, and support each other's training and fights. After Vitali's retirement, Wladimir continued to reign as champion & successfully defend all remaining title belts except for the WBC belt. He eventually lost
Wladimir Klitschko December 2013, Klitschko and his fiancée Hayden Panettiere visited the Euromaidan-protests in Kiev. His brother Vitali was one of the leading figures of these protests. He and his fiancée addressed the crowds. Wladimir and his brother Vitali have never fought each other in a professional fight as their mother made them promise to never fight each other. In 2008, after Wladimir's photo session held for "Vanity Fair" magazine with Karolína Kurková, she claimed to have had a relationship with the boxer. Klitschko speaks four languages: English, German, Russian and Ukrainian. He was friends with the late German heavyweight legend Max