In 1941, prior to the collapse of the Kingdom of Yugoslavia, there were 57 trucks with 60 tons of gold and other valuable stuff - property of the National Bank, and 27 trucks of money of the Royal Treasury in various currencies. Most of the treasure was hidden somewhere in Montenegro, presumed in and around the Ostrog monastery.
Upon the occupation by Fascist Italy, Italian brigade general Pentimalli sent the Italian troops (over 100 men)to search for the caves and the Monastery of Ostrog, in search of the gold. The Italians got most of it.
The Germans were angry because they only got hold of 370 million dinars, which was small change compared to what the Italians stole. King Peter took with him 15 million dinars and that was all he took.
The Italian Treasurer Adzollinni could not believe his eyes when he saw the loot taken from Yugoslavia. He spend some of it on a mansion and on living the good life. He hid the other stuff, most of which was found after the war.
After the war, in 1945, Tito was given back 27 tons of gold that belonged to the Kingdom of Yugoslavia. 2 years later, Tito got another 393 kilograms gold. Etc.
When Tito died in 1980, two unmarked and un-numbered gold bars were found locked in the drawer of his desk. He had lived a very luxurious lifestyle. He had diamond rings, a yacht, a train, about 40 villas across Yugoslavia, paintings, Arabian horses, you name it. He had a richer lifestyle than the President of the United States of America.
The final truth about the fate of the Yugoslav gold will never be known. King Peter took only a little part of it, a little bit was taken by Nazis, a big chunk by Italians, and a big chunk was given to the communists after the war. Some is probably still hidden in some cave somewhere, or in various Swiss bank accounts that nobody can now access...
Information gathered from the book
"Tito - the Crook", original title - "Hohstapler" by Miroslav Todorovic, published by Narodna knjiga - Alfa, 2003, language: Serbian. An excellent book that removes all the masks of Tito.