Addleshaw Goddard has received around £50m in fees from its representation of Boris Berezovsky over the last four years, as details of the Russian oligarch’s £20m fees to the Bar have also emerged.

The UK top 20 law firm has generated total fee income of £50m since taking on the mandate in January 2009, including a £15m success fee relating to Berezovsky’s recent settlement with the family of now-deceased Georgian billionaire, Arkady ‘Badri’ Patarkatsishvili.