You mean the King of Italy while Mussolini's dictatorship was in power?
If I'm right, he was the one who assumed de facto power after Mussolini was overthrown, cast his lot with the allies, but then got occupied by the Germans, so the allies had to fight their way through Italy.
He was pretty ineffectual I guess. I don't know whether his was supposed to be a ceremonial monarchy, like the current British one, or whether it was supposed to have any real power.
well what I consider the worst thing about him is that in the 20s Mussolini's movement was trying to seize power and was terrorizing "communists" throughout the country while he sat back and did nothing. Then when they held a massive demonstration on Rome and forced the Prime Minister to resign, he decided the best thing to do was simply cave and appointed Mussolini Prime Minister. He directly let Mussolini come to power and then whenever was told by him to jump, meekly replied "how high?"