Reminds me of an incident in WWII in which a ship with gold was damaged by the Nazis, then torpedoed by our own warships to keep the gold out of the nazi hands.
When found about forty five years ago, Russia, Great Britain and the USA put in a claim for the gold. It was then found that the USA had insurance on the gold and the insurance had paid off, so the US withdrew all claim to the gold.
Seems like the insurance company would have the best claim to what it had insured at that point.