Marcus Licinius Crassus (from the First Triumvirate) was considered to be richest man ever. After his death however, what happened to his immense fortune? It seems like a treasure like that would be noted in the annals, but I haven't seen anything Plutarch about this. Are there any other records?
Well, since Crassus died prematurely (at the Battle of Carrhae) during a rebellion that would seem to be unlikely. After all, if he were to have built a tomb it would have been in Italy, not Syria, and since he never got to retire to Rome because the Parthians unexpectedly killed him in battle, I think we can safely assume that whatever plans he had for his final resting place, they were unfulfilled.