The Gold of Troy: by Robert Payne.

Son of a lower class family from Germany who emigrated to US as many did in that era, Heinrich Schliemann lacked schooling beyond rudimentary but read a great deal due to his hunger for knowledge not satisfied with the day to day need to work hard and earn to survive. He grew a conviction contradicting that of the era about Homer's work being not fiction but historical, and when he had amassed enough riches to begin his dream project he went with a determination to look for Troy and Agamemnon's gold. For this he had to first marry a Greek girl since he would otherwise not have permission to dig in Greece, which he did with an honest explanation to her after searching for a suitable wife - he was in his fifties, she at the end of her teens - who married him for sake of her nation apart from finding his mission attractive. It so happened they finally succeeded in finding the gold and Troy, but it was in then Turkey, and had to steal it out illegally. He however changed his mind about restoring it to Greece and after much swerving back and forth gave it to Germany, rather than US or Greece, which did not find approval with the wife who had been with him in all his travails.

The gold, then on in a museum in Berlin, vanished post wwII and surfaced only recently with opening up of the iron curtain. It was safe in Russia all these years post wwII.