Krivonogikh is thought to have come into ownership of valuable stock options, including a majority stake in the Igora Ski Resort, 70 miles north of St Petersburg, which is a favourite haunt of Putin’s, and another majority stake in the Leningrad Center performance venue. It comes as Kremlin foe Alexei Navalny accused Vladimir Putin of using state cash to fund his secret mistresses in a new video issued after his arrest in Moscow.