6. Adnan Khashoggi & Soraya Khashoggi: $874 Million
Saudi Arabian billionaire Adnan Khashoggi was only 15 years old when he married United Kingdom native Sandra Daly in 1961. She later changed her faith to Islam and also changed her name as Soraya Khashoggi. They raised 5 children over the course of their marriage. Adnan gathered a majority of his wealth as a weapons dealer. The English ex-pat sued him for $2.54 billion as a divorce settlement. It is the largest sum ever requested for a divorce settlement. She walked away with $874 million.