Igor SechinRussia's President Vladimir Putin talks to Rosneft President Igor Sechin in Moscow in 2013. Nikolai and Kirill ShamalovKirill Shamalov is reported to be married to Vladimir Putin's daughter Katerina. Vladimir Putin's daughter Katerina -- who is said to be an academic and an acrobatic rock 'n' roll dancer -- is reportedly married to Kirill Shamalov . Vyacheslav VolodinRussian President Vladimir Putin speaks as his Depyuty Chief of Staff Vyacheslav Volodin (left) looks on during a meeting in 2013. Arkady and Boris RotenbergArkady Rotenberg is a childhood friend of Vladimir Putin -- the pair met in a judo class.

Source: CNN March 28, 2017 11:37 UTC