The oil tycoon was married to Smith for a year when he died in 1995 and the blonde fought his son and other family members for a large cut of his fortune up until her passing from an accidental drug overdose in 2007, reported E! online.
Lawyers for her estate kept up the legal fight, but they were dealt a bitter blow in 2011 when a Supreme Court Chief Justice in Washington, DC overturned a prior ruling to give the tragic beauty's family USD 475 million.
Phil Boesch, lawyer of Smith's estate, said, "This is a complete vindication of Anna Nicole's rights, and a total condemnation of what was done to her. We are confident that the amount Anna's estate and daughter Dannielynn will finally be awarded will be fair and substantial."
Ironically, Smith's romance with the oil tycoon will be detailed in a new TV movie, Anna Nicole, which will air in the US this month.