Jeff K,
Thanks for the additional information about the Sussex, correcting the proprtional shares that I had indicated in my earlier post. I think I got that info some time ago from UK newspaper article.
However, I want to correct your point about private ships all being subject to salvage claims, at least as far as US waters are concerned. Under the 1902 Treaty between Spain and the US, Spanish wrecks in US waters enjoy special protection whether they were Government owned or privately owned. This is spelt out in the treaty. In 2000, the Federal Court of Appeals ruled in the SeaHunt Inc. case that this treaty required a standard of specific abandonment before a Spanish wreck can be considered "abandoned", and that ships which have not been "abandoned" are not subject to salvage claims. Therefore Spanish wrecks in US waters that were privately owned are not subject to salvage claims, unless their original owner, or the rightful successors of the original owner, have specifically declared them to be abandoned.
A second issue is that warships are only protected from salvage under the International Convention when they are on non-commercial activities. (This is no longer true in US waters, as a result of the new law introduced in November 2004, which says that all Government owned wrecks in US waters are protected from salvage claims, no matter what their activity at the time of sinking) I think there might be a debate about whether the Sussex was on military duty while carrying the gold to the Duke of Alba, but that became a moot point anyway when Odyssey reached agreement with her owners, the British Government.
Mariner