 Vittorio Emanuele took this action after his father allegedly called for Amedeo, 5th Duke of Aosta to visit him in Portugal to name him his heir.Under his self-assumed powers as King of Italy, Vittorio Emanuele conferred the title of Duchess of Sant'Anna di Valdieri on his then fiancée, Marina Doria.On the night of 17 August or the morning of 18 August 1978, on the island of Cavallo (which lies off the south coast of Corsica), Vittorio Emanuele discovered his yacht's rubber dinghy had been taken and attached to another nearby yacht.