Reminded me of the stolen gold of Tolosa that disappeared during Roman times, probably into the pockets of a Consul or general. The McCullough lady had a candidate in her books but I forget who he was.
Wow, that’s a fascinating story, looks like another one which grew in the telling, like the Oak Island Mystery.
https://en.wikipedia.org/wiki/The_Gold_of_Tolosa
http://romanhistorybooks.typepad.com/roman_history_books_and_m/2006/08/the_gold_of_tol.html