The investigation began after Marco Di Nunzio, 55, deposited and published a non-holographic will allegedly signed in Colombia more than two years ago, in which the founder and leader of centre-right Forza Italia party allegedly left him a handsome sum.

The fake will gave Di Nunzio two per cent of shares in the Berlusconi family holding company Fininvest, 26 million euro, all the shares in the company that owns his villas in Antigua, the ship ‘Principessa VaiVia’ and other vessels.

Berlusconi was estimated to have had a net worth of over six billion euros at the time of his death in June aged 86.

His will, opened in July, gave his two older children, Marina and Pier Silvio, combined control of Fininvest, with the rest of the holding split between the three children from his second marriage, Barbara, Eleonora and Luigi Berlusconi.

Berlusconi also left 100 million euros to his brother Paolo and another 100 million euros to his last partner, 33-year-old Marta Fascina.

He left 30 million euros to his former aide Marcello Dell’Utri.

ANSA