Nikita Mazepin and mega-rich father Dmitry are among 14 new high-profile Russians targeted by the European Union for sanctions related to Vladimir Putin's invasion of Ukraine.
Putin and his allies have been targeted by such sanctions, with the aim of forcing those responsible for the war to suffer financially.
The latest round of sanctions has targeted Mazepin Snr, after it emerged he met with the Russian president on February 24 – just hours after Putin ordered his invasion.