Still, there were families in those days with unfathomable wealth. If memory serves me well, one was so wealthy that when they sold their land after becoming Christians they caused a real estate crisis across the Roman Empire. (Source: The inheritance of Rome, Chris Wickham, one of the early chapters.) And just a few centuries earlier, Julius Caesar arguably was one of the richest to have ever lived on earth. It's sensible to expect that families with that kind of wealth to leave a trace in their ancestry. And yet with rare exceptions they did not.